The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.
Devices that help people with impaired sensory responses.
The minimum amount of stimulus energy necessary to elicit a sensory response.
Differential response to different stimuli.
Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.
A delayed response interval occurring when two stimuli are presented in close succession.
The selecting and organizing of visual stimuli based on the individual's past experience.
The smallest difference which can be discriminated between two stimuli or one which is barely above the threshold.
The sensory discrimination of a pattern shape or outline.
The real or apparent movement of objects through the visual field.
The ability to detect sharp boundaries (stimuli) and to detect slight changes in luminance at regions without distinct contours. Psychophysical measurements of this visual function are used to evaluate visual acuity and to detect eye disease.
Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.
Vision considered to be inferior to normal vision as represented by accepted standards of acuity, field of vision, or motility. Low vision generally refers to visual disorders that are caused by diseases that cannot be corrected by refraction (e.g., MACULAR DEGENERATION; RETINITIS PIGMENTOSA; DIABETIC RETINOPATHY, etc.).
Theoretical representations that simulate psychological processes and/or social processes. These include the use of mathematical equations, computers, and other electronic equipment.
Perception of three-dimensionality.
Psychophysical technique that permits the estimation of the bias of the observer as well as detectability of the signal (i.e., stimulus) in any sensory modality. (From APA, Thesaurus of Psychological Index Terms, 8th ed.)
The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness.
Area of the OCCIPITAL LOBE concerned with the processing of visual information relayed via VISUAL PATHWAYS.
Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.
A series of tests used to assess various functions of the eyes.
Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
The positioning and accommodation of eyes that allows the image to be brought into place on the FOVEA CENTRALIS of each eye.
Awareness of oneself in relation to time, place and person.
The process whereby auditory stimuli are selected, organized, and interpreted by the organism.
The process by which the nature and meaning of sensory stimuli are recognized and interpreted.
Set of cell bodies and nerve fibers conducting impulses from the eyes to the cerebral cortex. It includes the RETINA; OPTIC NERVE; optic tract; and geniculocalcarine tract.
The process in which light signals are transformed by the PHOTORECEPTOR CELLS into electrical signals which can then be transmitted to the brain.
The difference between two images on the retina when looking at a visual stimulus. This occurs since the two retinas do not have the same view of the stimulus because of the location of our eyes. Thus the left eye does not get exactly the same view as the right eye.
The total area or space visible in a person's peripheral vision with the eye looking straightforward.
Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.
Use of sound to elicit a response in the nervous system.
The blending of separate images seen by each eye into one composite image.
Recording of electric potentials in the retina after stimulation by light.
Learning that is manifested in the ability to respond differentially to various stimuli.
Focusing on certain aspects of current experience to the exclusion of others. It is the act of heeding or taking notice or concentrating.
The time from the onset of a stimulus until a response is observed.
Method of measuring and mapping the scope of vision, from central to peripheral of each eye.
Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.
The coordination of a sensory or ideational (cognitive) process and a motor activity.
Elements of limited time intervals, contributing to particular results or situations.
The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM.
Theory and development of COMPUTER SYSTEMS which perform tasks that normally require human intelligence. Such tasks may include speech recognition, LEARNING; VISUAL PERCEPTION; MATHEMATICAL COMPUTING; reasoning, PROBLEM SOLVING, DECISION-MAKING, and translation of language.
The means of interchanging or transmitting and receiving information. Historically the media were written: books, journals, newspapers, and other publications; in the modern age the media include, in addition, radio, television, computers, and information networks.
Portable electronics device for storing and playing audio and or media files. MP3 for MPEG-1 audio layer 3, is a digital coding format.
The ability to learn and to deal with new situations and to deal effectively with tasks involving abstractions.
The transmission and reproduction of transient images of fixed or moving objects. An electronic system of transmitting such images together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound. (From Webster, 3rd ed)
Images used to comment on such things as contemporary events, social habits, or political trends; usually executed in a broad or abbreviated manner.
The sum or the stock of words used by a language, a group, or an individual. (From Webster, 3d ed)
A specified list of terms with a fixed and unalterable meaning, and from which a selection is made when CATALOGING; ABSTRACTING AND INDEXING; or searching BOOKS; JOURNALS AS TOPIC; and other documents. The control is intended to avoid the scattering of related subjects under different headings (SUBJECT HEADINGS). The list may be altered or extended only by the publisher or issuing agency. (From Harrod's Librarians' Glossary, 7th ed, p163)
The branch of psychology concerned with psychological methods of recognizing and treating behavior disorders.
The ability to detect scents or odors, such as the function of OLFACTORY RECEPTOR NEURONS.

On the neural correlates of visual perception. (1/3601)

Neurological findings suggest that the human striate cortex (V1) is an indispensable component of a neural substratum subserving static achromatic form perception in its own right and not simply as a central distributor of retinally derived information to extrastriate visual areas. This view is further supported by physiological evidence in primates that the finest-grained conjoined representation of spatial detail and retinotopic localization that underlies phenomenal visual experience for local brightness discriminations is selectively represented at cortical levels by the activity of certain neurons in V1. However, at first glance, support for these ideas would appear to be undermined by incontrovertible neurological evidence (visual hemineglect and the simultanagnosias) and recent psychophysical results on 'crowding' that confirm that activation of neurons in V1 may, at times, be insufficient to generate a percept. Moreover, a recent proposal suggests that neural correlates of visual awareness must project directly to those in executive space, thus automatically excluding V1 from a related perceptual space because V1 lacks such direct projections. Both sets of concerns are, however, resolved within the context of adaptive resonance theories. Recursive loops, linking the dorsal lateral geniculate nucleus (LGN) through successive cortical visual areas to the temporal lobe by means of a series of ascending and descending pathways, provide a neuronal substratum at each level within a modular framework for mutually consistent descriptions of sensory data. At steady state, such networks obviate the necessity that neural correlates of visual experience project directly to those in executive space because a neural phenomenal perceptual space subserving form vision is continuously updated by information from an object recognition space equivalent to that destined to reach executive space. Within this framework, activity in V1 may engender percepts that accompany figure-ground segregations only when dynamic incongruities are resolved both within and between ascending and descending streams. Synchronous neuronal activity on a short timescale within and across cortical areas, proposed and sometimes observed as perceptual correlates, may also serve as a marker that a steady state has been achieved, which, in turn, may be a requirement for the longer time constants that accompany the emergence and stability of perceptual states compared to the faster dynamics of adapting networks and the still faster dynamics of individual action potentials. Finally, the same consensus of neuronal activity across ascending and descending pathways linking multiple cortical areas that in anatomic sequence subserve phenomenal visual experiences and object recognition may underlie the normal unity of conscious experience.  (+info)

Transient and permanent deficits in motion perception after lesions of cortical areas MT and MST in the macaque monkey. (2/3601)

We examined the nature and the selectivity of the motion deficits produced by lesions of extrastriate areas MT and MST. Lesions were made by injecting ibotenic acid into the representation of the left visual field in two macaque monkeys. The monkeys discriminated two stimuli that differed either in stimulus direction or orientation. Direction and orientation discrimination were assessed by measuring thresholds with gratings and random-dots placed in the intact or lesioned visual fields. At the start of behavioral testing, we found pronounced, motion-specific deficits in thresholds for all types of moving stimuli, including pronounced elevations in contrast thresholds and in signal-to-noise thresholds measured with moving gratings, as well as deficits in direction range thresholds and motion coherence measured with random-dot stimuli. In addition, the accuracy of direction discrimination was reduced at smaller spatial displacements (i.e. step sizes), suggesting an increase in spatial scale of the residual directional mechanism. Subsequent improvements in thresholds were seen with all motion stimuli, as behavioral training progressed, and these improvements occurred only with extensive behavioral testing in the lesioned visual field. These improvements were particularly pronounced for stimuli not masked by noise. On the other hand, deficits in the ability to extract motion from noisy stimuli and in the accuracy of direction discrimination persisted despite extensive behavioral training. These results demonstrate the importance of areas MT and MST for the perception of motion direction, particularly in the presence of noise. In addition, they provide evidence for the importance of behavioral training for functional recovery after cortical lesions. The data also strongly support the idea of functional specialization of areas MT and MST for motion processing.  (+info)

Psychophysics of remembering. (3/3601)

We present a new model of remembering in the context of conditional discrimination. For procedures such as delayed matching to sample, the effect of the sample stimuli at the time of remembering is represented by a pair of Thurstonian (normal) distributions of effective stimulus values. The critical assumption of the model is that, based on prior experience, each effective stimulus value is associated with a ratio of reinforcers obtained for previous correct choices of the comparison stimuli. That ratio determines the choice that is made on the basis of the matching law. The standard deviations of the distributions are assumed to increase with increasing retention-interval duration, and the distance between their means is assumed to be a function of other factors that influence overall difficulty of the discrimination. It is a behavioral model in that choice is determined by its reinforcement history. The model predicts that the biasing effects of the reinforcer differential increase with decreasing discriminability and with increasing retention-interval duration. Data from several conditions using a delayed matching-to-sample procedure with pigeons support the predictions.  (+info)

Detection of vibration transmitted through an object grasped in the hand. (4/3601)

A tool or probe often functions as an extension of the hand, transmitting vibrations to the hand to produce a percept of the object contacting the tool or probe. This paper reports the psychophysical results of a combined psychophysical and neurophysiological study of the perception of vibration transmitted through a cylinder grasped in the hand. In the first part of the psychophysical study, 19 subjects grasped a cylinder, 32 mm diam, with an embedded motor that caused vibration parallel to the axis of the cylinder. The relationship between threshold and frequency was the traditional U-shaped function with a minimum between 150 and 200 Hz. Except a study by Bekesy in which subjects grasped a rod that vibrated parallel to the skin surface, thresholds above 20 Hz were lower and the slopes were steeper than any reported previously. Thresholds were <0.01 microm in some subjects. Data from both the psychophysical and the neurophysiological studies suggest that detection performance at frequencies >20 Hz was based on activity in Pacinian afferents. The extreme sensitivity compared with previous reports may have resulted from differences in contact area, direction of vibration, contact force, and the shape of the stimulus probe. The effects of each of these variables were studied. At 40 and 300 Hz (frequencies near the lower and upper end of the Pacinian range) thresholds were 9.8 and 18.5 dB (68 and 88%) lower, respectively, when subjects grasped the cylinder than when a 1-mm-diam probe vibrated perpendicular to the skin. These differences were accounted for as follows: 1) thresholds at a single fingerpad obtained with the large cylindrical surface were, on average, 20 and 60% lower, respectively, than thresholds with the punctate probe; 2) thresholds at the palm were, on average, 15 and 40% lower, respectively, than at the fingerpads; 3) thresholds obtained when the subjects grasped the cylinder averaged 40 and 20% less, respectively, than when the cylinder contacted only the palm; 4) thresholds with the cylinder contacting two fingers were 10 and 30% lower, respectively, than thresholds with the cylinder contacting a single finger; and 5) thresholds with vibration parallel to the skin surface were, on average, 10 and 30% lower, respectively, than thresholds with vibration perpendicular to the skin. Contact force, which was varied from 0.05 to 1.0 N, had no effect.  (+info)

Effect of spatial attention on the responses of area MT neurons. (5/3601)

This study examines the influence of spatial attention on the responses of neurons in the middle temporal visual area (MT or V5) of extrastriate cortex. Two monkeys were trained to perform a direction-discrimination task. On each trial, two apertures of random-dot stimuli appeared simultaneously at two spatially separated locations; the monkeys were required to discriminate the direction of stimulus motion at one location while ignoring the stimulus at the other location. After extensive training, we recorded the responses of MT neurons in two configurations: 1) Both apertures placed "within" the neuron's receptive field (RF) and 2) one aperture covering the RF while the other was presented at a "remote" location. For each unit we compared the responses to identical stimulus displays when the monkey was instructed to attend to one or the other aperture. The responses of MT neurons were 8.7% stronger, on average, when the monkey attended to the spatial location that contained motion in the "preferred" direction. Attentional effects were equal, on average, in the within RF and remote configurations. The attentional modulations began approximately 300 ms after stimulus onset, gradually increased throughout the trial, and peaked near stimulus offset. An analysis of the neuronal responses on error trials suggests that the monkeys failed to attend to the appropriate spatial location on these trials. The relatively weak attentional effects that we observed contrast strikingly with recent results of Treue and Maunsell, who demonstrated very strong attentional modulations (median effect >80%) in MT in a task that shares many features with ours. Our results suggest that spatial attention alone is not sufficient to induce strong attentional effects in MT even when two competing motion stimuli appear within the RF of the recorded neuron. The difference between our results and those of Treue and Maunsell suggests that the magnitude of the attentional effects in MT may depend critically on how attention is directed to a particular stimulus and on the precise demands of the task.  (+info)

Geometric representation of the mechanisms underlying human curvature detection. (6/3601)

Combined manipulation of blur, line length and contrast reveal two distinct processes involved in curvature detection. When line length is small relative to blur, thresholds are almost directly proportional to blur and independent of line length. When line length is large relative to blur thresholds are directly proportional to line length and independent of blur. The aspect ratio (line length/blur) of curved contours represents a scale-invariant metric which forms the decisive factor in determining curvature performance.  (+info)

Chromatic masking in the (delta L/L, delta M/M) plane of cone-contrast space reveals only two detection mechanisms. (7/3601)

The post-receptoral mechanisms that mediate detection of stimuli in the (delta L/L, delta M/M) plane of color space were characterized using noise masking. Chromatic masking noises of different chromaticities and spatial configurations were used, and threshold contours for the detection of Gaussian and Gabor tests were measured. The results do not show masking that is narrowly-selective for the chromaticity of the noise. On the contrary, our findings suggest that detection of these tests is mediated only by an opponent chromatic mechanism (a red-green mechanism) and a non-opponent luminance mechanism. These results are not consistent with the hypothesis of multiple chromatic mechanisms mediating detection in this color plane [1].  (+info)

Is the rod visual field temporally homogeneous? (8/3601)

Cone vision has been shown to be temporally inhomogeneous across the visual field. In the periphery, contrast sensitivity is lower for low temporal frequencies and higher for high temporal frequencies. Here we ask a similar question for rod vision at mesopic luminances. Isolation is obtained by testing a well documented rod monochromat. We show that the rod visual field exhibits only a modest degree of temporal inhomogeneity.  (+info)

Background: Psychophysical measurement of the function of individual precortical visual pathways (magnocellular, parvocellular and koniocellular) has enabled the development of sensitive tests for glaucoma and has enhanced understanding of its pathophysiology. Such pathways can be further subdivided into their On and Off components, which have anatomical and physiological asymmetries. This study investigated whether On and Off subdivisions of the magnocellular (M) pathway are differentially affected by glaucoma.. Methods: 20 participants with glaucoma and 20 controls underwent two psychophysical procedures that have been shown to assess the M pathway (steady pedestal task) and its On and Off subdivisions (pedestal-delta-pedestal task) respectively. Luminance discrimination thresholds were measured foveally, using both increment and decrement stimuli.. Results: The steady pedestal (undifferentiated M-pathway) task separated the glaucoma and control groups (p = 0.04) with equivalent outcomes ...
View Notes - class+3+lecture_posted from PSYCHOLOGY 830:301 at Rutgers. Sensation and Perception Class III: Psychophysics (cont.) & Elementary Neuroscience Theory of Signal Detection Figure 1.14
The UCLA neurobiologist uses computational modeling, in vitro electrophysiology, and human psychophysics experiments to explore how neurons and the brain as a whole perceive and respond to time.. 0 Comments. ...
The UCLA neurobiologist uses computational modeling, in vitro electrophysiology, and human psychophysics experiments to explore how neurons and the brain as a whole perceive and respond to time.. 0 Comments. ...
We examined the effects of negative delays on the perception of causality using a variation of the paradigm originated by Michotte (1954) and as an extension to similar work conducted by Kanizsa and Vicario (1968). In our ...
Download The Psych-Toolbox-Wrapper for free. The major aim of the Psychtoolbox 3 wrapper is to provide a set of basic tools that allow programming novices the use of the Psychophysics Toolbox without limiting the power and flexibility of the Psychophysics Toolbox and MATLAB.
1. Vision Research is a journal devoted to the functional aspects of human, vertebrate and invertebrate vision and publishes experimental and...
In 2010 scientists at the University of Iowa Wynn Institute for Vision Research discovered an RP-causing gene known as MAK. They have now embarked upon an ambitious project to cure this disease, which has three major goals ...
This meeting is not currently runing. The idea of these lunch sessions is to create a forum, perhaps primarily for PhD students, but really for everybody who is interested, to discuss ongoing work, get feedback, and exchange ideas related to machine learning. The sessions are very informal, no slides required! In most cases it involves a brief presentation (max 30 min) and a subsequent discussion. A session can deliver a high-level overview of a project that the speaker is currently working on, or it can be about specific results, or about a particular problem with which other people might be able to help, about a new idea, or... i.e. anything that seems interesting enough to tell others and to discuss (well - almost anything ;)). The hope is that these sessions will lead to more interactions - and facilitate our work. Lunches are generally held every Friday at 1 pm in room IF1.16 in the Informatics Forum. Announcements are made through the PIGS mailing list. ...
Catie Travers, Community Liaison will be accompanied by clinicians from the Adolescent and the Adult Programs. They will provide a brief presentation and will be available to answer any questions you might have about treatment and programming at High Focus ...
this is brief presentation , I had present it in my workfield..hope u get benefit and I will be happy to get new information about my topic,,,,
Purpose: : To evaluate human achromatic spatial contrast sensitivity (CSF) with transient visual evoked cortical potential (tVECP). To compare electrophysiological and psychophysical measurements. Methods: : Six healthy subjects (21 ± 2 years-old) were monocularly tested. The stimuli were black and white horizontal sinusoidal gratings, 40 cd/m2 mean luminance, presented in a 5º circular patch. Six spatial frequencies were used: 0.4, 0.8, 2, 4, 8, and 10 cycles per degree (cpd), in 1 Hz squarewave reversal mode. Electrophysiological contrast thresholds were estimated by linear regressions fitted to data point representing P100 tVECP amplitude as a function of log contrast, extrapolated to zero amplitude. Psychophysics measurements were performed in the same spatial frequencies plus 1 and 6 cpd, using identical spatio-temporal configuration as used in tVECP experiments (dynamic presentation) and using stationary stimuli (static presentation). Psychophysical contrast sensitivity was obtained ...
A new directionally sensitive motion detection system is proposed that is capable of detecting local motion without any significant preprocessing. It has a delay-and-compare structure like that of the Reichardt detector but uses as its basic building block the shunting inhibition neural model. It is therefore called the local inhibitory motion detector. Furthermore, an array of such detectors exhibits adaptive responses akin to those observed in motion-sensitive biological neurons.. © 1999 Optical Society of America. Full Article , PDF Article ...
9780805819755 Recent Progress in Mathematical Psychology: Psychophysics, Knowledge Representation, Cognition, and Measurement (Scientific Psychology Series),books, textbooks, text book
Lamb, M.R., Pond, H.M., & Zahir, G. (2000). Contributions of Automatic and Controlled Processes to the Analysis of Hierarchical Structure. Journal of Experimental Psychology: Human Perception and Performance, 26, 234-245.. Lamb, M.R. & Yund, E.W. (2000). The Role of Spatial Frequency in Cued Shifts of Attention between Global and Local Forms. Perception & Psychophysics, 62, 753-761.. Lamb, M.R., Yund, E.W., & Pond, H.M. (1999). Is attentional selection to different levels of hierarchical structure based on spatial frequency? Journal of Experimental Psychology: General, 128, 88-94.. Lamb, M.R. (1998). Review of The Two Sides of Perception by Ivry, R.B. & Robertson, L.C., The MIT Press. Trends in Cognitive Science, 2, 200-201.. Lamb, M.R., London, B., Pond, H.M. & Whitt, K.A. (1998). Automatic and controlled processes in the analysis of hierarchical structure. Psychological Science, 9, 14-19.. Lamb, M.R. & Yund, E. W. (1996). Spatial frequency and interference between global and local levels of ...
Fechner, along with Wilhelm Wundt and Hermann von Helmholtz, is recognized as one of the founders of modern experimental psychology. His clearest contribution was the demonstration that because the mind was susceptible to measurement and mathematical treatment, psychology had the potential to become a quantified science. Theorists such as Immanuel Kant had long stated that this was impossible, and that therefore, a science of psychology was also impossible.. Though he had a vast influence on psychophysics, the actual disciples of his general philosophy were few. Ernst Mach was inspired by his work on psychophysics.[16] William James also admired his work: in 1904, he wrote an admiring introduction to the English translation of Fechners Büchlein vom Leben nach dem Tode (Little Book of Life After Death).. Fechners world concept was highly animistic. He felt the thrill of life everywhere, in plants, earth, stars, the total universe. Man stands midway between the souls of plants and the souls of ...
Buy Artificial Intelligence journals, books & electronic media online at Springer. Choose from a large range of academic titles in the Computer Science category.
An olfactometer basically consists of an air compressor, tubing, valves, and odor reservoirs. It injects short bursts of odor into an airstream delivered to the individual nostrils via plastic nose pieces, or via a nose mask. The Monell device is compact-it fits in a 25-inch tall cabinet with a 20 x 20 inch footprint. The cabinet, which can be purchased, is the most expensive item on the parts list at $1,000. A custom three-way valve manifold also costs $1,000. The are twelve other parts, some required in multiples. Total cost of the unit: $5,284. Which is a bargain, I might add ...
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Closter, NJ (PRWEB) September 30, 2012 -- When designing motion systems that require rollers or cam followers, many engineers still believe that only all-metal
Postdoctoral Research Scholar in the Center for Translational Vision Research in Academia, Full Time, Life Sciences with University of California, Irvine. Apply Today.
Meaning and definition of the name Gabor. Learn the meaning of Gabor, learn about the origin of the name Gabor and find other information about the name Gabor.
By Louis Narens. This book is designed to be an introduction to the theories of measurement and meaningfulness, and not a comprehensive study of those topics. A major theme of this book is the psychophysical measurement of subjective intensity. This has been a subject of intense interest in psychology from the very…. Paperback - 2013-10-31 ...
Psychophysics experiments and EEG recordings reveal that peoples performance in detecting unexpected changes in complex auditory scenes can be modeled as a process of sensory evidence accumulation.
J. Anthony Movshon & William Newsome. This years Vision Award recognises the work of both Dr. Movshon and Dr. Newsome over the last 30 years. Working at times together and at other times separately, these outstanding researchers have had a major impact on scientists understanding of how the brain reconstructs images, so that human beings can perceive, interpret and act in the world. By building a bridge between psychophysics and human behaviour on the one hand and the physiology of individual neurons and what they compute on the other, these two neuroscientists have shed ground-breaking light upon how the brain reconstructs visual images.. ...
Published in the journal Attention, Perception, & Psychophysics, Wus study showed one way in which we can become more efficient in our attention abilities - by using newly acquired knowledge of individual items to group them into categories. Wus previous studies show that it takes 200 milliseconds to find one object (among others on a computer screen). Interestingly, when many items are grouped into one category, people can find any of the items from that category within the same amount of time. In this new study, Wu found the same signature of attention in the brain waves of participants who had just learned that novel objects could be grouped into categories ...
On a second-order schedule, a subject responds according to one schedule (the unit schedule) for a brief presentation of a stimulus such as a light. Responding ...
Introduction There are two characteristics about Stephen K. Sanderson (b. 1945) and his evolutionary materialism that I wish to emphasize in this brief presentation.
Fernandez-Duque, D.; Thornton, I.: Explicit mechanisms do not account for implicit localization and identification of change: A reply to Mitroff et al. (2002). Journal of Experimental Psychology: Human Perception and Performance 29 (5), S. 846 - 858 (2003 ...
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PURPOSE. We extracted spatial channels underlying scotopic contrast sensitivity functions (CSFs) of normal adult observers, and compared them to channels underlying photopic contrast sensitivity functions. METHODS. Scotopic CSFs were measured on 50 observers between the ages of 20 and 88 years (Schefrin et al. 1999). These CSFs were measured psychophysically using 2AFC at 7 spatial frequencies ranging from 0.2 to 3.0 c/deg, with mean retinal illuminance equated for observers at −0.85 log scotopic Trolands. RESULTS. A covariance analysis of individual differences was applied to the data. We computed statistical sources of individual variability, used them to define covariance channels, and determined the number and frequency tuning of these channels. We found evidence for 3 discrete channels operating below 3 c/deg. Two covariance channels operated primarily above 1 c/deg, and were predicted and well fit by a computational model of photopic vision (Wilson & Gelb, 1984; mechanisms A and ...
Anderson, Roger (2006) The psychophysics of glaucoma: improving the structure/function relationship. Progress in Retinal and Eye Research, 25 . pp. 79-97. [Journal article] ...
All stimuli were generated using the MATLAB (The MathWorks, MA) programming environment with Psychtoolbox (Brainard, 1997; Pelli, 1997) routines. The test stimulus whose orientation was to be judged was a sinusoidal grating with a hard-edged circular window (3° diameter). It was embedded at the center of a larger disk filled with a sinusoidal grating (8° diameter, the surround). Both grayscale gratings had a spatial frequency of 2 c/° and a luminance contrast of 100%. The test grating was always vertical (=0° hereafter). To aid the visibility of the test grating, the relative spatial phase difference between the test grating and the surrounding grating was always fixed at 1/4 pi (45°) although the absolute spatial phase was chosen randomly for each trial. Orientations of the surround were varied from 3° to 19° with a 2° step, both clockwise and counterclockwise, resulting in 18 conditions. The comparison grating was identical to the test grating except that its orientation was ...
Contrast response functions (CRFs) for the VEP were obtained with a Discrete Fourier Transform (DFT) technique employing swept contrast gratings. VEP CRFs in infants were found to have a form similar to those observed in adults, being linear functions of log contrast over a range of near-threshold c …
Professor for Psychological Methodology. Biography. 1961, 2. May; born in Ljubljana, Slovenia.. Full-time working position: Professor for Psychological Methodology at the Department of Psychology, Faculty of Arts, University of Ljubljana.. Education:. 1985 - B. Sc. at the Department of Psychology, University of Ljubljana (thesis: The selection procedure at the Department of Psychology in Ljubljana: its prognostic validity regarding students success).. 1989 - M.Sc. at the Department of Psychology, University of Ljubljana (thesis: Development of psychophysical procedures for evaluating the time of photochemical processes in human retina).. 1993 - PhD at the Department of Psychology, University of Ljubljana (thesis: Comparative validation of the speed of information processing paradigms and their relation to the classical construct of general (g) intelligence).. Employment:. 1985 - Teaching psychology for one year at the Secondary school of pharmacy in Ljubljana.. 1986 - Employed full time ...
Eight patients implanted with multiple-channel cochlear prostheses have displayed good discrimination of sound sensations elicited at different sites within the cochlea. All patients rank the sensations from sharp to dull in an order which corresponds with basal to apical position in the cochlea. Detailed psychophysical studies have been carried out on two patients. These showed that discrimination of rate of (pulsatile) stimulation is good for frequencies up to 300 Hz and falls off sharply for frequencies above this. Electrode transitions (changes in position along the cochlea) are well discriminated for fast changes (25 msec), whereas rate transitions are not well discriminated for changes faster than 100 msec. From these results a speech processing strategy was formulated where second formant information is mapped to position in the cochlea and fundamental frequency mapped to rate of stimulation. Vowel and consonant confusion studies show consistent results for all patients using this ...
A presentation apparatus which can automatically adjust the total presentation time and presentation time intervals of a video material according to users desired total presentation time so that the video material necessary for presentation can be screened within the desired total presentation time. The user inputs the desired total presentation time to the presentation apparatus. In the apparatus, the desired total presentation time is compared with a standard total presentation time to find a difference therebetween as an adjustment time. One of adjusting methods is selected on the basis of the found adjustment time. A data indicative of the selected adjusting method is stored in an adjustment memory.
70-slide presentation on the psychology and neuroscience of sensations, including touch, taste, smell, and hearing Numerous charts, graphs, research results, vocabulary, and cartoons are provided. All vocabulary is indicated in bold. Presentation prepared by a former
This paper provides a review of the current literature on psychophysical properties of low-frequency hearing, both before and after implantation, with a focus on frequency selectivity, nonlinear cochlear processing, and speech perception in temporally modulated maskers for bimodal listeners as...
NAEVR RELEASES FY2017 FUNDING REQUESTS FOR NIH/NEI AND THE DOD VISION RESEARCH PROGRAM (Washington, D.C.) Today, the National Alliance for Eye and Vision Research (NAEVR) released its Fiscal Year (FY) 2017 funding requests that it will use in Congressional advocacy.. National Institutes of Health (NIH)/National Eye Institute (NEI):. The vision community thanks Congress for the strong bipartisan support for FY 2016 NIH funding of $32.1 billion, a $2 billion increase, and for an NEI operating budget of $708 million, which for the first time in four years (after the devastating impact of the $36 million sequester cut) grows the NEI budget above the pre-sequester funding level of $702 million, albeit minimally (0.8 percent). NAEVR urges Congress to appropriate at least $34.5 billion for NIH and $770 million for the NEI in FY2017, a 7.5 percent increase over FY2016 for each that reflects five percent real growth above the projected 2.5 percent rate for biomedical inflation. Sustained and predictable ...
This study is the first to combine materials science and psychophysics to understand how humans perceive touch. Receptors processing sensations from our skin are phylogenetically the most ancient, but far from being primitive they have had time to evolve extraordinarily subtle strategies for discerning surfaces-whether a lovers caress or a tickle or the raw tactile feel of metal, wood, paper, etc. This study is one of the first to demonstrate the range of sophistication and exquisite sensitivity of tactile sensations. It paves the way, perhaps, for a whole new approach to tactile psychophysics, Ramachandran said.. Super-sensitive touch. In a paper published in Materials Horizons, UC San Diego researchers tested whether human subjects could distinguish-by dragging or tapping a finger across the surface-between smooth silicon wafers that differed only in their single topmost layer of molecules. One surface was a single oxidized layer made mostly of oxygen atoms. The other was a single ...
Things to think about before you take action about discrimination at work, covering employment status, time limits, possible outcomes and checking whether incidents count as discrimination.
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Director, Center for Drug Evaluation and Research, U.S. Food and Drug... Closing Discussion with Session Chairs, Panelists, and Audience Led by Workshop Chair. ...
Find info concerning Warren Wilson College experimental psychology. Qualifications for vacant positions vary considerably. Learn more about accredited college degree programs, and certificate courses that can lead to a high-paying career.
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Mathew Alpern, PhD The Beginning The University of Michigan has a long tradition of excellence in vision research and in training vision scientists.
NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: NEI Collaborative Clinical Vision Research Project: Coordinating Center Grant (UG1 Clinical Trial Required) PAR-18-521. NEI
Psychophysics Toolbox Version 3 (PTB-3) is a free set of Matlab and GNU Octave functions for vision and neuroscience research. It makes it easy to synthesize and show accurately controlled visual and auditory stimuli and interact with the observer. A subset of its functionality is also available as part of Python based toolkits like PsychoPy. For commercial support and services visit our companion website www.psychtoolbox.net.. ...
Two back-EMF-based position observers are compared for motion-sensorless synchronous reluctance motor drives. The reduced-order observer is of the second order, and the adaptive full-order observer is of the fourth order. The proposed design rules guarantee the stability of the adaptive full-order observer, if the parameter estimates are accurate. The observers are experimentally evaluated using a 6.7-kW synchronous reluctance motor drive in low-speed operation and under parameter errors. The gain selection of the second-order observer is easier, but the adaptive full-order observer is more robust against parameter variations and spatial harmonics ...
Estimation, lag selection, diagnostic testing, forecasting, causality analysis, forecast error variance decomposition and impulse response functions of VAR models and estimation of SVAR and SVEC models.. ...
py.psy.exp is a user-friendly library for developing psychology experiments using Python, Pygame and NumPy. While (currently) not as full featured as something like VisionEgg or the Psychophysics toolbox, we may be exactly what you are looking for if you need a simple way to design a higher-level cognition experiment ...
The Sayer Vision Research Lecture and Award funds an annual presentation delivered by an investigator conducting outstanding research in the area of vision research or related fields. It also provides a grant to support the research of a promising independent investigator in the early stage of his or her career in the Division of Intramural Research whose work is closely related to aspects of vision research.. ...
The Sayer Vision Research Lecture and Award funds an annual presentation delivered by an investigator conducting outstanding research in the area of vision research or related fields. It also provides a grant to support the research of a promising independent investigator in the early stage of his or her career in the Division of Intramural Research whose work is closely related to aspects of vision research.. ...
Near rhymes (words that almost rhyme) with geophysics: radiophysics, biophysics, astrophysics, psychophysics... Find more near rhymes/false rhymes at B-Rhymes.com
http://www.diabetes.org/advocacy-and-legalresources/discrimination/employment/jobrights.jsp Visit this website if you feel that you have been discriminate...
IN a pedagogical method which is experimental the education of the senses must undoubtedly assume the greatest importance. Experimental psychology also takes note of movements by means of sense measurements. Pedagogy, however, although it may profit by psychometry is not designed to measure the sensations, but educate the senses. This is a point easily understood, yet one which is often confused. While the proceedings of esthesiometry are not to any great extent applicable to little children, the education of the senses is entirely possible. We do not start from the conclusions of experimental psychology. That is, it is not the knowledge of the average sense conditions according to the age of the child which leads us to determine the educational applications we shall make. We start essentially from a method, and it is probable that psychology will be able to draw its conclusions from pedagogy so understood, and not vice versa. The method used by me is that of making a pedagogical experiment with ...
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Is comparison and contrast at the root of thought? No. Non-duality is at the root of thought. Non-duality is at the root of everything that is apparently happening. What is at the root of comparison…
Description of disease Variation, observer. Treatment Variation, observer. Symptoms and causes Variation, observer Prophylaxis Variation, observer
The distinction between the natural and the miraculous is only one of human perception. Everything that occurs is really a miracle.
Stevens, S. S. (1975). Psychophysics. New York: Wiley. von Eye, A. (2005). "Review of Cliff and Keats, Ordinal measurement in ... Stevens, S. S. (1951). Mathematics, measurement and psychophysics. In S. S. Stevens (Ed.), Handbook of experimental psychology ...
Webster's 1936 dictionary defined sound as: "1. The sensation of hearing, that which is heard; specif.: a. Psychophysics. ...
Psychophysics. 66 (5): 800-807. doi:10.3758/bf03194974. PMID 15495905. Simmons, D. J. (1996). "In sight, out of mind: When ...
Shockley, Kevin; Sabadini, Laura; Fowler, Carol (2004-05-01). "Imitation in shadowing words". Perception & Psychophysics. 66 (3 ... Psychophysics. 66 (2): 249-254. doi:10.3758/bf03194876. ISSN 0031-5117. Saltuklaroglu, Tim; Kalinowski, Joseph (2011). "The ...
Richardson, MW (1938). "Multimensional psychophysics". Psychological Bulletin. 35: 659-660. doi:10.1037/h0055433. Ennis, Daniel ...
Halpern, DL; Blake, R; Hillenbrand, J (1986). "Psychoacoustics of a chilling sound". Perception & Psychophysics. 39 (2): 77-80 ...
Envelope (waves) Place theory Temporal theory Viemeister NF, Plack CJ (1993). Human Psychophysics. Springer Handbook of ...
Sergent, J (1984). "Hemispheric mediation of same-different judgments". Perception & Psychophysics. 35 (6): 592-595. doi: ... Psychophysics. 37 (6): 571-578. doi:10.3758/BF03204924. PMID 4059016. Sergent, J (1984). "Configural processing of faces in the ... Psychophysics. 31 (5): 451-461. doi:10.3758/BF03204855. PMID 7110904. Sergent, J. (1982). Influence of input characteristics on ... Psychophysics. 35 (5): 489-498. doi:10.3758/BF03203925. PMID 6462875. Sergent, J (1984). "Hemispheric competence and perceptual ...
Psychophysics. 22: 54-62. doi:10.3758/bf03206080. Rees, G; Russell, C.; Frith, c.; Driver, J. (1999). "Inattentional blindness ...
In psychophysics research laboratories, a favored test of tactile spatial acuity has for many years been the grating ... Psychophysics. 66 (1): 60-67. doi:10.3758/bf03194861. ISSN 0031-5117. PMID 15095940. Van Boven, R. W.; Hamilton, R. H.; ... Psychophysics. 63 (2): 337-347. doi:10.3758/bf03194474. ISSN 0031-5117. PMID 11281108. Tremblay, François; Wong, Kim; Sanderson ...
Psychophysics. 48 (4): 313-325. doi:10.3758/bf03206682. PMID 2243755. Remez, R.E.; Rubin, P.E.; Berns, S.M.; Pardo, J.S.; Lang ... Perception and Psychophysics. 19 (5): 394-398. doi:10.3758/bf03199398. Fowler, C. A., Rubin, P. E., Remez, R. E., & Turvey, M. ...
In psychophysics, auditory scene analysis is the process by which the brain separates and organizes sounds into perceptually ... Beavois, M. W.; Meddis, R. (1997). "Time Decay of Auditory Stream Biasing". Perception & Psychophysics. 59: 81-86. doi:10.3758/ ... Psychophysics, 1987, Vol. 41, 642-656 Bey, C, and McAdams, S. "Postrecognition of Interleaved Melodies as an Indirect Measure ... Psychophysics. 53: 179-189. doi:10.3758/bf03211728. Rogers, W. L.; Bregman, A. S. (1998). "Culmulation of the Tendency to ...
Coltheart, Max (1980). "Iconic memory and visible persistence". Perception & Psychophysics. 27 (3): 183-228. doi:10.3758/ ... Thomas, Laura; David Irwin (2006). "Voluntary eyeblinks disrupt iconic memory". Perception & Psychophysics. 68 (3): 475-488. ... Psychophysics. 69 (5): 772-784. doi:10.3758/BF03193778. Beste, Christian; Daniel Schneider; Jörg Epplen; Larissa Arning (Feb ...
Gilbert, Avery (2008). "Hollywood Psychophysics". What the Nose Knows. Crown Publishers. ISBN 978-1-4000-8234-6. CS1 maint: ...
Psychophysics. 55 (4): 443-453. doi:10.3758/bf03205301. PMID 8036123. Liu W, Forrester L, Whitall J (2006). "A note on time- ...
Psychophysics. 40 (6): 431-439. doi:10.3758/bf03208203. Thibaut, Miguel; Tran, Thi Ha Chau; Szaffarczyk, Sebastien; Boucart, ...
Rosenblum, L. D.; Schmuckler, M. A.; Johnson, J. A. (1997). "The McGurk effect in infants". Perception & Psychophysics. 59 (3 ... Perception and Psychophysics. 68 (4): 582-592. doi:10.3758/bf03208760. Brancazio, L.; Best, C. T.; Fowler, C. A. (2006). " ... Perception and Psychophysics. 58 (3): 351-362. doi:10.3758/bf03206811. PMID 8935896. Alsius, A.; Navarra, J.; Soto-Faraco, S. ( ... Perception and Psychophysics. 55 (6): 633-641. doi:10.3758/bf03211678. PMID 8058451. Nicholson, K.; Baum, S.; Cuddy, L.; ...
Robert Efron (1973). "Conservation of temporal information by perceptual systems". Perception & Psychophysics. 14 (3): 518-530 ... Psychophysics. 76 (2): 270-279. doi:10.3758/s13414-013-0605-z. hdl:1721.1/107157. PMID 24374558. S2CID 180862. ...
Psychophysics. 25 (4): 249-263. doi:10.3758/bf03198804. PMID 461085. S2CID 11801785. Heil, M.; Osman, A.; Wiegalman, J.; Rolke ... Perception and Psychophysics. 16: 143-149. doi:10.3758/bf03203267. S2CID 12012872. "Cognitive Atlas". Lamers, Martijn J. M.; ...
Psychophysics from 1971 to 1993. Eriksen was a leading academic psychologist researching the field of visual perception. He ... Psychophysics. 55 (1): 1-8. doi:10.3758/BF03206874. PMID 8036089. Eriksen, Barbara A.; Eriksen, Charles W. (January 1974). " ... Psychophysics. 80 (5): 1030-1034. doi:10.3758/s13414-018-1532-9. PMID 29869150. Kramer, Arthur; Coles, Michael; Eriksen, ... "Effects of noise letters upon the identification of a target letter in a nonsearch task". Perception & Psychophysics. 16 (1): ...
Surprenant AM (May 2001). "Distinctiveness and serial position effects in tonal sequences". Perception & Psychophysics. 63 (4 ...
Bernstein, LE; Demorest, ME; Tucker, PE (2000). "Speech perception without hearing". Perception & Psychophysics. 62 (2): 233-52 ...
Psychophysics. 69 (4): 591-595. doi:10.3758/bf03193916. PMID 17727112. S2CID 2620925. 6. Sokolov E N, Spinks J A, Naatanen R, ...
Geyer, L. H.; DeWald, C. G. (1 October 1973). "Feature lists and confusion matrices". Perception & Psychophysics. 14 (3): 471- ... Keren, Gideon; Baggen, Stan (1 May 1981). "Recognition models of alphanumeric characters". Perception & Psychophysics. 29 (3): ... Psychophysics. 25 (4): 303-312. doi:10.3758/BF03198809. PMID 461090. Doyle, W (1960). Recognition of sloppy, hand-printed ...
Social psychophysics.] (1877). IV. Die sociale Physiologie. [Social physiology.] (1879). V. Die Religion, betrachtet vom ... Social psychophysics] (1877); IV, Die sociale Physiologie [Social physiology] (1879); and V, Die Religion, betrachtet vom ...
Psychophysics. 62 (4): 673-683. doi:10.3758/BF03206914. PMID 10883576. Grimes, J. (1996), "On the failure to detect changes in ... Psychophysics. 70 (3): 489-495. doi:10.3758/pp.70.3.489. PMID 18459259. Veronica, M; Massimo, T; Carlo, U (2005). "Foreground- ... Psychophysics. 77 (4): 1189-1199. doi:10.3758/s13414-015-0871-z. ISSN 1943-3921. PMID 25788038. Fenn, Kimberly M.; Shintel, ... Psychophysics, 44 (4): 369-378, doi:10.3758/BF03210419, PMID 3226885, S2CID 17545490 Silverman, M.; Mack, A. (2006), "Change ...
Perception and Psychophysics. 52 (3): 315-328. doi:10.3758/bf03209148. PMID 1408642. Nobre, A.; Truett, A.; McCarthy, G. (1994 ... Psychophysics. 22 (3): 249-261. doi:10.3758/bf03199687. S2CID 144497014. Mishkin, Mortimer; Forgays; Donald (1952). "Word ... Psychophysics 25(1), 12-22. Retrieved from http://alexandria.tue.nl/repository/freearticles/734512.pdf Campbell, J. R., Kelly, ...
Rozin, Paul (1982-07-01). ""Taste-smell confusions" and the duality of the olfactory sense". Perception & Psychophysics. 31 (4 ...
Weblink Deutsch, D. (1987). "The tritone paradox: Effects of spectral variables". Perception & Psychophysics. 41 (6): 563-575. ...
Psychophysics. 32 (6): 555-561. doi:10.3758/BF03204210. ISSN 1532-5962. PMID 7167354. Weintraub, Daniel J.; Schneck, Michael K ... Psychophysics. 40 (3): 147-158. doi:10.3758/BF03203010. ISSN 1532-5962. PMID 3774497. van Ittersum, Koert; Wansink, Brian (2012 ...
Purchase Visual Psychophysics and Physiology - 1st Edition. Print Book & E-Book. ISBN 9780120622603, 9780323147781 ... Visual Psychophysics and Physiology 1st Edition. A Volume Dedicated to Lorrin Riggs. 0.0 star rating Write a review ... Visual Psychophysics and Physiology: A Volume Dedicated to Lorrin Riggs illustrates a particular approach to the study of ... 3 on sensitivity and adaptation examines new research that bears directly upon the classical problems of visual psychophysics. ...
... Attention, Perception, & Psychophysics covers all areas of research in ... sensory processes, perception, attention, and psychophysics. Most articles are reports of experimental work. Theoretical, ...
UPMCs electrophysiology and psychophysics service utilizes a variety of technologies and methods to diagnose retinal and optic ... Visual Electrophysiology and Psychophysics. UPMCs electrophysiology and psychophysics service utilizes a variety of ...
Make research projects and school reports about Psychophysics easy with credible articles from our FREE, online encyclopedia ... CONCEPTS IN PSYCHOPHYSICS. Absolute threshold: as the stimulus strengthens from the undetectable, the point at which the person ... Urban, Friedrich M. 1908 The Application of Statistical Methods to the Problems of Psychophysics. Philadelphia: Psychological ... Psychophysics is the study of physical stimuli and their relation to sensory reactions. Of the energy that strikes the sensory ...
Gustav Theodor Fechner (1860). Elemente der Psychophysik (Elements of Psychophysics). Snodgrass JG. 1975. Psychophysics. In: ... Elements of Psychophysics). He coined the term "psychophysics", describing research intended to relate physical stimuli to the ... Psychophysics has been described as "the scientific study of the relation between stimulus and sensation" or, more completely, ... In psychophysics, experiments seek to determine whether the subject can detect a stimulus, identify it, differentiate between ...
books.google.comhttps://books.google.com/books/about/The_Principles_of_Psychophysics.html?id=Unl9AAAAMAAJ&utm_source=gb-gplus- ... 0 ReviewsWrite reviewhttps://books.google.com/books/about/The_Principles_of_Psychophysics.html?id=Unl9AAAAMAAJ ...
Johnson KO, Hsiao SS, Yoshioka T (2002). "Neural coding and the basic law of psychophysics". The Neuroscientist. 8 (2): 111-121 ... Beatriz EU, Maria EA (1987). "Handedness and psychophysics: weight and roughness". International Journal of Neuroscience. 36 (1 ... In terms of psychophysics, several studies have been done involving a persons ability to detect the differences between the ...
1997) Under psychophysics. the most important concept is the concept of Threshold. The issue of how the intensity of a stimulus ... Psychophysics is the study of the relationship between the physical aspects of stimuli and our psychological experience of them ... influences our sensory responses comes under the branch of psychophysics. in practice it is sometimes difficult to find the ...
Ophthalmoscopy Adaptive optics Retina Cone photoreceptors Psychophysics Visual acuity Fixational eye motion Color vision ... The technological hurdles to be overcome for cell-based psychophysics were achieved by building upon continued innovations in ... 17.3.4 Cone Targeted Psychophysics Finally, the combination of the technological innovations described in the preceding ... Harmening W.M., Sincich L.C. (2019) Adaptive Optics for Photoreceptor-Targeted Psychophysics. In: Bille J. (eds) High ...
SafetyLit: The weekly online update of injury research and prevention literature. SafetyLit is produced by the Center for Injury Prevention Policy and Practice at San Diego State University.
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... Spat Vis. 1997;10(4):437-42. ...
Psychophysics. Convergence. Integration. Transduction. Coding. Perception. Top-Down Process. Synesthesia. Qualia. Receptor ...
A computational model to link psychophysics and cortical cell activation patterns in human texture processing. ...
Part VIII: Psychophysics of Vision *Psychophysics of Vision by Michael Kalloniatis and Charles Luu ... Psychophysics of Vision by Michael Kalloniatis and Charles Luu. Michael Kalloniatis and Charles Luu ... One aspect of visual psychophysics deals with noise and is termed, Signal Detection Theory, but this will not be covered here. ... Geischeider, G.A. (1997) Psychophysics: The Fundamentals. 3rd ed. New Jersey: Lawrence Erlbaum Associates, Inc., Publishers. ...
Buy or Rent Psychophysics Beyond Sensation as an eTextbook and get instant access. With VitalSource, you can save up to 80% ... Psychophysics Beyond Sensation Edition by Christian Kaernbach and Publisher Psychology Press. Save up to 80% by choosing the ...
Attention, Perception and Psychophysics is a journal covering sensory processes, perception, and psychophysics. Since it was ... Attention, Perception and Psychophysics. PRPEER-REVIEWED PERIODICAL Peer-reviewed publications on Questia are publications ... Home » Browse » Academic journals » Psychology Journals » Attention, Perception and Psychophysics » Vol. 77, No. 3, April ... Evidence from psychophysics, neurophysiology, and neuroimaging suggests that there are neuronal populations tuned to this... ...
psychophysics. XXXVI. Transition from external to internal psychophysics. XXXVII. About the seat of the soul. a) Seat of the ... psychophysics. XXXIX. General significance of the threshold in internal psychophysics XL. Sleep and guards. XLI. Partial sleep ... eliminated altogether for internal psychophysics. But also for the external and hereby experimental psychophysics the formulas ... psychophysics, but, as it were, the key to its door is. In fact, even if the measure-formula can do much to orient us in the ...
Reviews the book, Visual psychophysics and physiology: A volume dedicated to Lorrin Riggs by John C. Armington, John Krauskopf ...
Visual Psychophysics and Physiological Optics You will receive an email whenever topic Visual Psychophysics and Physiological ... Visual Psychophysics and Physiological Optics July 2020 Illusory Motion Perception Is Associated with Contrast Discrimination ...
1 more author) (2006) Sticky attention in autistic spectrum disorder--visual psychophysics and movement. Perception, 35 (ECVP ...
The Psychophysics of Chasing: A Case Study in the Perception of Animacy ...
Psychophysics and Physiology, Reihe: MPI Series in Biological Cybernetics, Bd. 3 ... Visual object categorization and representation in primates: Psychophysics and Physiology. MPI Series in Biological Cybernetics ...
Psychophysics Service Preferential looking in conjunction with visual evoked potential (VEP) can be performed to assess visual ... Visual Electrophysiology, ERG, VEP & Psychophysics The New England Eye Center offers a full complement of eletrophysiologic ...
For the psychophysics measurement, this includes the selected characteristics of the psychophysics signal component since the ... The other component is configured to elicit a response to a psychophysics stimulation, referred to herein as a psychophysics ... Indications of the psychophysics measurement and the concurrently obtained neural response measurements are provided to the ... concurrently with the performance of psychophysics measurements of a prosthetic hearing implant recipient. During the fitting ...
The psychophysics of newborn infant vision assessment You will receive an email whenever this article is corrected, updated, or ... Angela Brown, Faustina Opoku, Delwin Lindsey; The psychophysics of newborn infant vision assessment. Journal of Vision 2018;18( ...
... intro to psychophysics flashcards from Elaida D. on StudyBlue. ...
For psychophysics experiments, it is customary to report results for every participant. Those results can be found in Tables A1 ... Perception & Psychophysics 62.150511. FEATHERSTON, SAM. 2005a. Magnitude estimation and what it can do for your syntax: Some WH ... Given the potential benefits of MEP over the n-point scale task in psychophysics, Bard and colleagues (1996) proposed a ... Perception & Psychophysics 67.56979.. Department of Cognitive Sciences University of California, Irvine 3151 Social Science ...
Occipital Fmri Response Is Associated With Structural Ocular Findings And Psychophysics Tests In Glaucoma Patients ... Occipital Fmri Response Is Associated With Structural Ocular Findings And Psychophysics Tests In Glaucoma Patients ... response to visual stimuli and its association with structural ocular findings and psychophysics tests in patients with ... Occipital Fmri Response Is Associated With Structural Ocular Findings And Psychophysics Tests In Glaucoma Patients. Invest. ...
  • The journal also encourages studies with a neuroscientific perspective that enhance our understanding of attention, perception, and psychophysics. (springer.com)
  • The journal is published by Psychonomic Society.Subjects in Attention, Perception and Psychophysics include: Psychology and Psychiatry. (questia.com)
  • that is, a neural response, concurrently with the performance of psychophysics measurements of a prosthetic hearing implant recipient. (google.com)
  • Indications of the psychophysics measurement and the concurrently obtained neural response measurements are provided to the user. (google.com)
  • Here, the functional role of FF-FB streams and their synaptic dynamics in adaptation to natural stimuli is assessed in psychophysics and neural model. (frontiersin.org)
  • Utilizing a well-known visual motion paradigm that evokes behavioral suppression and facilitation, and combining five different methodologies (behavioral psychophysics, computational modeling, functional MRI, pharmacology, and magnetic resonance spectroscopy), we provide evidence that challenges commonly held assumptions about the neural processes underlying suppression and facilitation. (elifesciences.org)
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  • While OCT readily creates cross-sectional images of the retina along the optical axis in an interferometric approach, confocal SLO technology allows en face images of the retina by detecting backscattered light reflected from a transverse plane of the retina. (springer.com)
  • The purpose of this study was to evaluate the functional magnetic resonance imaging (fMRI) response to visual stimuli and its association with structural ocular findings and psychophysics tests in patients with glaucoma and controls. (arvojournals.org)
  • This combined psychophysics-fMRI study used the musician's brain to investigate how sensory-motor experience molds temporal binding of auditory and visual signals. (pnas.org)
  • To address this question, we used functional magnetic resonance imaging (fMRI) while participants viewed translational motion in different directions, and we measured thresholds for direction discrimination of moving stimuli in a separate psychophysics experiment. (frontiersin.org)
  • I use a combination of functional magnetic resonance imaging (fMRI), psychophysics, and computational modeling. (nottingham.ac.uk)
  • UPMC's electrophysiology and psychophysics service utilizes a variety of sophisticated technologies and methods to detect, diagnose and evaluate various visual disorders. (upmc.com)
  • Recent research in both psychophysics and electrophysiology has revealed a number of examples in which behaviour is guided by (i.e. (nuigalway.ie)
  • This volume presents a series of studies that expand laws, invariants, and principles of psychophysics beyond its classical domain of sensation. (routledge.com)
  • Psychophysics quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they produce. (wikipedia.org)
  • He coined the term "psychophysics", describing research intended to relate physical stimuli to the contents of consciousness such as sensations (Empfindungen). (wikipedia.org)
  • Psychophysics is the study of physical stimuli and their relation to sensory reactions. (encyclopedia.com)
  • Psychophysics is the study of the relationship between the physical aspects of stimuli and our psychological experience of them (Baird. (scribd.com)
  • Psychophysics Beyond Sensation Edition by Christian Kaernbach and Publisher Psychology Press. (vitalsource.com)
  • Many of the classical techniques and theories of psychophysics were formulated in 1860 when Gustav Theodor Fechner in Leipzig published Elemente der Psychophysik (Elements of Psychophysics). (wikipedia.org)
  • The issue of how the intensity of a stimulus influences our sensory responses comes under the branch of psychophysics. (scribd.com)
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  • For the psychophysics measurement, this includes the selected characteristics of the psychophysics signal component since the results of the applied stimulation is a recipient behavioral or auditory response. (google.com)
  • Visual Psychophysics and Physiology: A Volume Dedicated to Lorrin Riggs illustrates a particular approach to the study of vision. (elsevier.com)
  • Reviews the book, Visual psychophysics and physiology: A volume dedicated to Lorrin Riggs by John C. Armington, John Krauskopf, and B. R. Wooten (Eds. (ovid.com)
  • Buchbeschreibung: Anastasia Sigala : Visual object categorization and representation in primates: Psychophysics and Physiology, Reihe: MPI Series in Biological Cybernetics, Bd. (logos-verlag.de)
  • Evidence from psychophysics, neurophysiology, and neuroimaging suggests that there are neuronal populations tuned to this. (questia.com)
  • Attention, psychophysics and models of human vision. (rochester.edu)
  • The study is published in Springer's journal Attention, Perception, & Psychophysics . (eurekalert.org)
  • 2014) Safety in numbers: Target prevalence affects the detection of vehicles during simulated driving, Attention, Perception, & Psychophysics . (eurekalert.org)
  • Tactile-visual links in exogenous spatial attention under different postures: convergent evidence from psychophysics and ERPs. (ox.ac.uk)
  • Part 3 on sensitivity and adaptation examines new research that bears directly upon the classical problems of visual psychophysics. (elsevier.com)
  • You will receive an email whenever topic 'Visual Psychophysics and Physiological Optics' is updated. (arvojournals.org)
  • We have a dedicated visual psychophysics laboratory equipped with display systems and a VSG 2/5 stimulus generator (Cambridge Research Systems). (brunel.ac.uk)
  • Another main focus of our work is to use advanced vision and virtual reality techniques in psychophysics experiments to learn about the human brain and the human visual system. (rochester.edu)
  • The psychophysics of glaucoma: improving the structure/function relationship. (ulster.ac.uk)
  • This type of experiment where you manipulate something in the real physical world and measure the perception caused in a person's mind is called psychophysics, and it was Weber and Fechner who started this whole field of research. (cs4fn.org)
  • Cognitive processes are investigated using psychophysics and psychological empirical methods. (fz-juelich.de)
  • Because of its unique development as a tool within psychophysics, magnitude estimation is a fundamentally different cognitive task from the other acceptability-judgment tasks: in magnitude estimation, participants are asked to estimate the acceptability of a target sentence by using the acceptability of a different sentence as a unit of measure. (scribd.com)
  • Given the ascendency of magnitude estimation in linguistics, it is perhaps surprising to note that in the years since Bard and colleagues (1996) first adapted magnitude estimation for use in syntax, the field of psychophysics has systematically questioned whether participants can actually perform the cognitive task asked of them by the magnitude-estimation procedure. (scribd.com)
  • Although there has been some promising work in this regard, progress has been hampered by an absence of a unified theoretical framework regarding function, unconfirmed assumptions inherent in many experimental designs, and a misguided predilection for researchers to interpret results from a variety of vertebrate models in the context of human psychophysics. (mendeley.com)
  • Building on the recent formalization of these assumptions in the psychophysics literature (Narens 1996, Luce 2002), this article presents two experiments designed to test whether these assumptions hold for acceptability-judgment experiments. (scribd.com)
  • In terms of psychophysics, several studies have been done involving a person's ability to detect the differences between the weight and roughness of objects. (wikipedia.org)
  • XXXVIII.transfer of Weber's law and the fact of the threshold into internal psychophysics. (pdf-archive.com)
  • It is the goal of psychophysics to map out the relations between the physical events and the psychological responses of organisms, and thus to provide a basic, over-all description of the function of the senses. (encyclopedia.com)
  • For example, in the study of digital signal processing, psychophysics has informed the development of models and methods of lossy compression. (wikipedia.org)
  • The other component is configured to elicit a response to a psychophysics stimulation, referred to herein as a psychophysics signal component. (google.com)
  • Psychophysics also refers to a general class of methods that can be applied to study a perceptual system. (wikipedia.org)
  • Experimentally psychophysics researchers have found that, if you don't go to extremes, then Weber's law is a good predictor relating stimulus strength to perception. (cs4fn.org)
  • Human psychophysics and rodent spinal neurones exhibit peripheral and central mechanisms of inflammatory pain in the UVB and UVB heat rekindling models. (semanticscholar.org)
  • See Durlach and Colburn (1978) and Colburn and Durlach (1978) for comprehensive reviews of binaural psychophysics and models thereof. (scholarpedia.org)
  • The preverbal download The Physics and Psychophysics, which was the leaving pause, amplified grouped and held by the due cleaning systems of the early science: Descartes, Leibniz, Huygens, Newton, and AccessPolicies. (fassauer-family.de)
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