space perception: Process through which humans and other organisms become aware of the relative positions of their own bodies and objects around them. Space perception provides cues, such as depth...
Nocions , Shaping visual space perception through bodily sensations: Testing the impact of nociceptive stimuli on visual perception in peripersonal space with temporal order judgments ...
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In the past few years, evidence has accumulated which suggests that many well-known spatial distortions might be related to systematic biases in two perceived angular variables - the perceived direction of gaze (e.g. gaze declination from horizontal) and the perceived optical slant of surfaces (Durgin and Li, 2011; Durgin and Li, in press; Durgin, Li and Hajnal, 2010; Li and Durgin, 2009, 2010; Li, Phillips and Durgin, 2011). It has been shown that in the range between 0° and 50°, both the perceived declination of gaze and the perceived optical slant of surfaces are expanded with a linear gain of about 1.5; perceived optical slant also increases as a function of viewing distance. An angular expansion hypothesis has been proposed which assumes that (1) there are perceptual biases in these two angular variables and (2) that the relationships between these and other perceived spatial variables otherwise still adhere to a Euclidean geometry. Specifically, it has been shown that such an angular ...
Get this from a library! Spatial cognition research : the human navigation process and its comparability in complex real and virtual environments. [Edna Platzer;]
To reinvestigate how place cells represent the environment, we made recordings as rats ran around inside a gray cylindrical apparatus with two distinct stimuli, a white card and a black card, pasted on the apparatus wall. There were four main findings. (a) In agreement with earlier work (Muller and Kubie 1987; Thompson and Best 1990), firing fields are stable for days when place cells are repeatedly recorded with the two cards in standard positions. (b) Equal rotations of the two cards on the cylinder wall caused firing fields to rotate by the same amount. Firing fields were otherwise unaltered by such rigid rotations. This nearly ideal control of firing fields by specific stimuli is also in agreement with previous work (OKeefe and Conway 1978; Muller and Kubie 1987; Sharp et al. 1990; Gothard et al. 1996; Cressant et al. 1997). (c) The only effect of removing one card and rotating the other was to cause uniform rotations of all firing fields. Thus, removal of one card did not cause firing ...
Some previous studies have reported impairments in Parkinsons disease (PD) that affect performance on visuospatial tasks. The aim of this study was to further elucidate the underlying cognitive impairment to visuospatial processing in PD. Nondementing PD patients and neurologically normal, age-matc …
Spatial characteristics of the Mise en scéne in Peter Zumthor`s Architecture - Peter Zumthor;Mise en $sc{\acute{e}}ne$;Atmospheres;Intertextuality;Synesthesia;
Verbal representations of space are related to the space they describe by a sign relation comprising three components. The first is the sign vehicle consisting of the sequence of words which describe the spatial environment. The second is the object of reference, the spatial environment as such, and the third is the mental representation of the spatial perception.Within this triad, space is never an unsemiotically given piece of reality. Space is always a semiotic phenomenon insofar as its structure depends on the process of human perception. Even as a referential object, space is not an independently given phenomenon of the real world itself but depends on the cognitive capacity and structure of the perceiving mind. ...
Chemists have developed a rich symbolic language to describe spatial relations of aperceptual particles of microscopic world (atoms, molecules) for interpreting, investigating and communicating chemical concepts and phenomena. The only perceivable features of microscopic world are those embedded in the symbolic chemical representations like molecular models, chemical structures, formulas, equations and symbols.. Research data tentatively reveal that understanding chemistry and performing in chemistry learning tasks using these representations are based upon the visuospatial (VS) ability of the learners, that is their capacity to perform spatial cognitive operations, such us recognition of graphic conventions and depth cues, manipulation of spatial information embedded in the representations, and mentally tracking of constraints based on concepts.. The aim of the proposed research, development and innovation project is: ...
Ive been making (or maybe I should say catching up on making) digital math activities after finally coming to terms with them being needed. I had willingly buried my head in the sand about digital and, to my total surprise, I have been absolutely loving making digital math resources! Whereas I have always been cognizant of the unavailability of color printers in schools, with digital there are no color limitations. Its been a lot of fun making digital math activities, like this integers digital math escape room. ...
Linking neural microcircuit function to emergent properties of the mammalian brain requires fine-scale manipulation and measurement of neural activity during behavior, where each neurons coding and dynamics can be characterized. We developed an optical method for simultaneous cellular-resolution st …
Cognitive skills can be achieved through CogniFit brain games, that train memory, hand-eye coordination, attention, spatial perception, etc.
2006 (English)In: International Journal of Retailing and Distribution Management, ISSN 0959-0552, Vol. 34, no 10, 722-741 p.Article in journal (Refereed) Published ...
Battery charge indicator offers a visual reference for charging status. 25%/50%/75%/100%. The other great benefit is using the charger to test a battery level before use. Bonus feature! Connect the charger to the battery to display the current charge level, so you will always know where your battery charge is at prior to use ...
Meanings of physical distance, spatial location, and direction of symbolic figure in the Doll Location Test were investigated with 283 normal college students in Japan. They were asked to indicate eight symbolic figures of hypothetical people such as
When Kym Nicholson and I commenced SID in the 1990s we had little idea of the conferences evolution. In 2016 I see an informative and superbly organised event which connects spatial professionals in SA. The conference is reaching beyond SA to other states and, most importantly, it is building bridges to other professions which utilise spatial information ...
I have a windows form, now I want to minimize it and then make a new form. How could I do that, and by the way I want to get the position information. Thanks!
SpatiaLite does not implements any kind of spatial index, mainly because SQLite in its own does not supports R-trees, but only B-trees. Please note well that this one may be a severe limitation, if you need to fastly access a very large data set by using some spatial selection criterion; but if yours data sets are not too large [less than 10.000 rows, just to fix an arbitrary limit] lacking of any kind of spatial index may be practically unnoticed ...
Disclosed is a methodology to establish a link between time-dependent dielectric breakdown (TDDB) information and spatial context in spatial wafer maps.
This paper proposes a new three-phase positive sequence detector. The scheme is based on a stationary reference frame and a Moving Average Filter (MAF) that guarantees the complete cancellation of harmonics and grid ...
Recent research shows that the spatial language parents use when talking to their children predicts their childs spatial language development (Pruden & Levine, in preparation). But parent spatial talk does not fully account for child spatial language. This study investigates whether the gestures parents produce along with spatial language have added value in predicting childrens acquisition of spatial language, over and above spatial language alone.. There are several reasons to expect that this may be the case. First, with respect to language acquisition in general, children are sensitive to the gestures of others in both conversational and pedagogical situations (Goldin-Meadow, 2003). At home, parents gestures predict childrens gestures and, in turn, their vocabulary size (Rowe & Goldin-Meadow, 2009). In instructional situations, children learn more from spoken instruction if it is accompanied by gesture than if it is not (Church, Ayman-Nolley, & Mahootian, 2004; Valenzeno, Alibali, & ...
Hamilton, Colin, Nilsson, Jonna, Robinson, Lucy, Salgado, Juliana, Ferrier, Nicol and Gallagher, Peter (2012) Can impairment in visualization contribute to poor visuospatial working memory performance in Major Depressive Disorder? In: 13th European Workshop on Imagery and Cognition (EWIC 2012), 20 -22 June 2012, Bochum, Germany. Full text not available from this repository. (Request a copy ...
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A New Spatial Transformation Scheme for Preventing Location Data Disclosure in Cloud Computing: 10.4018/978-1-4666-9845-1.ch084: Because much interest in spatial database for cloud computing has been attracted, studies on preserving location data privacy have been actively done.
Background The capacity of visual working memory (WM) is substantially limited and only a fraction of what we see is maintained as a temporary trace. The process of binding visual features has been proposed as an adaptive means of minimising information demands on WM. However the neural mechanisms underlying this process, and its modulation by task and load effects, are not well understood. Objective To investigate the neural correlates of feature binding and its modulation by WM load during the sequential phases of encoding, maintenance and retrieval. Methods and Findings 18 young healthy participants performed a visuospatial WM task with independent factors of load and feature conjunction (object identity and position) in an event-related functional MRI study. During stimulus encoding, load-invariant conjunction-related activity was observed in left prefrontal cortex and left hippocampus. During maintenance, greater activity for task demands of feature conjunction versus single features, and for
TY - JOUR. T1 - Occipital-parietal interactions during shifts of exogenous visuospatial attention. T2 - Trial-dependent changes of effective connectivity. AU - Indovina, Iole. AU - Macaluso, Emiliano. PY - 2004/12. Y1 - 2004/12. N2 - We studied neural interactions between brain areas involved in exogenous (stimulus-driven) control of visuospatial attention. With event-related functional magnetic resonance imaging (fMRI), we investigated changes of connectivity during shifts of spatial attention from an attended location to a previously unattended target location. Using a 3-T scanner, fMRI data were acquired from three healthy volunteers. According to a central visual cue, participants directed endogenous spatial attention to the left or the right visual hemifield for blocks of 56 s. Peripheral visual targets were presented unpredictably in either the attended hemifield (valid trials, 80%) or in the unattended hemifield (invalid trials, 20%) and participants performed a two-alternative ...
Because of our limited processing capacity, different elements of the visual scene compete for the allocation of processing resources. One of the most striking deficits in visual selection is simultanagnosia, a rare neuropsychological condition characterized by impaired spatial awareness of more than one object at time. To decompose the neuroanatomical substrates of the syndrome and to gain insights into the structural and functional organization of visuospatial attention, we performed a systematic evaluation of lesion patterns in a group of simultanagnosic patients compared with patients with either (i) unilateral visuospatial deficits (neglect and/or extinction) or (ii) bilateral posterior lesions without visuospatial deficits, using overlap/subtraction analyses, estimation of lesion volume, and a lesion laterality index. We next used voxel-based morphometry to assess the link between different visuospatial deficits and gray matter and white matter (WM) damage. Lesion overlap/subtraction analyses,
TY - JOUR. T1 - Dynamically detuned oscillations account for the coupled rate and temporal code of place cell firing. AU - Lengyel, Máté. AU - Szatmáry, Zoltán. AU - Érdi, Péter. PY - 2003/9/22. Y1 - 2003/9/22. N2 - Firing of place cells in the exploring rat conveys doubly coded spatial information: both the rate of spikes and their timing relative to the phase of the ongoing field theta oscillation are correlated with the location of the animal. Specifically, the firing rate of a place cell waxes and wanes, while the timing of spikes precesses monotonically as the animal traverses the portion of the environment preferred by the cell. We propose a mechanism for the generation of this firing pattern that can be applied for place cells in all three hippocampal subfields and that encodes spatial information in the output of the cell without relying on topographical connections or topographical input. A single pyramidal cell was modeled so that the cell received rhythmic inhibition in phase ...
GABA tea can be used to treat alcohol withdrawal symptoms as well as reducing the effects of alcohol consumption. GABA for alcohol withdrawal is a hangover cure and can prevent hangovers if consumed prior to drinking alcohol.
Imagine struggling to see, listen, or make movements in half of your environment. This is typical for individuals who suffer from unilateral spatial neglect, a common post-stroke deficit of attention to objects or events on the side opposite of the brain injury. The condition has a major impact on the everyday lives of stroke survivors and has shown to be a strong predictor of disability.
ndividuals with Williams syndrome typically show relatively poor visuospatial abilities in comparison to stronger verbal skills. However, individuals level of performance is not consistent across all visuospatial tasks. The studies assessing visuospatial functioning in Williams syndrome are critically reviewed, to provide a clear pattern of the relative difficulty of these tasks. This prompts a possible explanation of the variability in performance seen, which focuses on the processing demands of some of these tasks. Individuals with Williams syndrome show an atypical processing style on tests of construction, which does not affect tests of perception.. ...
Functional MRI was used to examine cerebral activations in 12 subjects while they performed a spatial attention task. This study applied more stringent behavioural and cognitive controls than previously used for similar experiments: (i) subjects were included only if they showed evidence of attentional shifts while performing the task in the magnet; (ii) the experimental task and baseline condition were designed to eliminate the contributions of motor output, visual fixation, inhibition of eye movements, working memory and the conditional (no-go) component of responding. Activations were seen in all three hypothesized cortical epicentres forming a network for spatial attention: the lateral premotor cortex (frontal eye fields), the posterior parietal cortex and the cingulate cortex. Subcortical activations were seen in the basal ganglia and the thalamus. Although the task required attention to be equally shifted to the left and to the right, eight of 10 subjects showed a greater area of activation in the
Mon., Dec. 4, noon. A Role for SMN in Motor Neuron Death and Neuronal Apoptosis, a Neurology seminar with Douglas Kerr; 1-191 Meyer. JHMI. Mon., Dec. 4, 12:15 p.m. bHLH-PAS Proteins, Hypoxia and Developmental Angiogenesis, a Carnegie Institution of Washington Embryology seminar with Celeste Simon, University of Pennsylvania Medical Center; Seminar Room, 115 W. University Pkwy. HW. Mon., Dec. 4, 1 p.m. Uncommon Scents: A Genetic Basis for Pheromone Recognition in Mammals, a Neuroscience special seminar with Ivan Rodriguez, The Rockefeller University; 811 WBSB. JHMI. Mon., Dec. 4, 4 p.m. A Radical View of Air Pollution, an Earth and Planetary Sciences seminar with Bill Brune, Pennsylvania State University; 305 Olin. HW. Mon., Dec. 4, 4 p.m. Iron Status Assessment in African Children, a Biochemistry and Molecular Biology seminar with Rebecca Stolzfus; W2030 SPH. JHMI. Mon., Dec. 4, 4 p.m. The David Bodian Seminar in Neuroscience --The Development of Space Perception with Albert Yonas, ...
TY - JOUR. T1 - Optical head tracking for functional magnetic resonance imaging using structured light. AU - Zaremba, Andrei A.. AU - MacFarlane, Duncan L.. AU - Tseng, Wei Che. AU - Stark, Andrew J.. AU - Briggs, Richard W.. AU - Gopinath, Kaundinya S.. AU - Cheshkov, Sergey. AU - White, Keith D.. PY - 2008. Y1 - 2008. N2 - An accurate motion-tracking technique is needed to compensate for subject motion during functional magnetic resonance imaging (fMRI) procedures. Here, a novel approach to motion metrology is discussed. A structured light pattern specifically coded for digital signal processing is positioned onto a fiduciary of the patient. As the patient undergoes spatial transformations in 6 DoF (degrees of freedom), a high-resolution CCD camera captures successive images for analysis on a computing platform. A high-speed image processing algorithm is used to calculate spatial transformations in a time frame commensurate with patient movements (10- 100 ms) and with a precision of at least ...
Read The effects of maps and textual information on navigation in a desktop virtual environment, Spatial Cognition and Computation on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
The middle panels (labeled B) show the mean firing rate response to each of the composite forms tested (5 × 16 array) at the most responsive spatial location. The adjacent panels to the right show the Z scores of the responses after subtracting the mean spatial response (see Experimental Procedures and Figure S1A, available online, for details of assessing significance). Example neuron I is preferentially tuned Selleckchem MEK inhibitor to straight shapes, neuron II to medium-curvature shapes, and neuron III to high-curvature/C shapes. Neuron IV had a significant spatial response. but no significant shape selectivity. The distribution of spatial and shape selective tuning is shown in Figure 1B. Across the population, 80 of 93 neurons showed significant shape selectivity while a smaller subset (n = 13, labeled in blue) had spatial tuning without significant shape tuning. We did not analyze this subset further. Furthermore, among neurons with significant shape selectivity, those preferring either ...
The thesis aspires to challenge CP by means of this formal analysis. Whether it belongs to a simple technique or a sophisticated visual scheme of ancient Chinese artists; the representational space of geometry; the making of visual perception by means of technical implements; and the bodily experience in actual space, are all shown to be indispensible parts of the present research. A concluding case study of the Chinese landscape garden gives a further demonstration that the pictorial ideas and visual techniques that once contributed to the iconological and psychological understanding of Chinese painting have also delivered an idealised form of spatial perception within the garden - where the sense of depth is firstly eliminated, and then artistically reconstituted. In this way, the nature of cavalier perspective will therefore have been explored on two levels - in the form of both spatial representation and bodily perception in actual space.. ...
Neurophysiological research has led to detailed mechanistic theories about how spatial locations and headings are represented in the brain and used in memory and navigation. INTRODUCTION 0369.001 The term`spatial cognition covers processes controlling behaviour that must be directed at particular locations, or responses that depend on the location or spatial arrangement of stimuli. There are many circumstances in which such processes are required for adaptive behaviour, and they are exhibited in creatures as diverse as bees, birds, rats and primates. At the most basic level, an organism must be able to flee from a dangerous location to a safer place. It may also need to return to a location where food is abundant or has been stored; to act upon a stimulus at one location, while temporarily ignoring other stimuli; or to navigate from one place to another by an efficient route, avoiding obstacles. All of these behaviours seem to demand some sort of spatial representation; a neural code that distinguishes
We develop a two-stage spatial point process model that introduces new characterizations of activation patterns in multisubject functional Magnetic Resonance Imaging (fMRI) studies. Conventionally multisubject fMRI methods rely on combining information across subjects one voxel at a time in order to identify locations of peak activation in the brain. The two-stage model that we develop here addresses shortcomings of standard methods by explicitly modeling the spatial structure of functional signals and recognizing that corresponding cross-subject functional signals can be spatially misaligned. In our first stage analysis, we introduce a marked spatial point process model that captures the spatial features of the functional response and identifies a configuration of activation units for each subject. The locations of these activation units are used as input for the second stage model. The point process model of the second stage analysis is developed to characterize multisubject activation patterns by
We argue that current theories of multisensory representations are inconsistent with the existence of a large proportion of multimodal neurons with gain fields and partially shifting receptive fields. Moreover, these theories do not fully resolve the recoding and statistical issues involved in multisensory integration. An alternative theory, which we have recently developed and review here, has important implications for the idea of frame of reference in neural spatial representations. This theory is based on a neural architecture that combines basis functions and attractor dynamics. Basis function units are used to solve the recoding problem, whereas attractor dynamics are used for optimal statistical inferences. This architecture accounts for gain fields and partially shifting receptive fields, which emerge naturally as a result of the network connectivity and dynamics.
Spatial perception is biased by action. Hills appear steeper and distances appear farther to individuals who would have to exert more effort to transverse the space. Objects appear closer, smaller, and faster when they are easier to obtain. Athletes who are playing better than others see their targets as bigger. These phenomena are collectively known as action-specific effects on perception. In this target article, we review evidence for action-specific effects, including evidence that they reflect genuine changes in perception, and speculate on possible applications of actions influence on vision.. ...
This study investigated whether eye proprioception contributes to visual localization. We tested whether a patient with a presumed deficit in eye proprioception after a focal lesion in the left postcentral gyrus made more errors in locating a visual target relative to the head midline compared with an aged-matched control group. Although the patient was as accurate and precise as the control group under the normal, baseline condition, she exhibited a significant error when the position of one eye was perturbed peripherally. In this condition, we found a shift to the left in perceived straight ahead when the task was executed with the left, contralesional eye. This corresponds to a shift toward the nose in perceived eye position, in the direction of the applied force. The direction of this shift is identical with that produced by a push after 1 Hz rTMS in healthy subjects, a procedure that decreased the excitability of the eye proprioceptive area (Balslev and Miall, 2008). The illusory eye ...
The end position information and the position information of the first and last entry points are generated, and the bit stream is recorded together with the entry point information and the path information.. [0013]. Further, the data recording method according to the present invention is characterized in that a start time code of each program is further generated and recorded in a predetermined area on the recording medium.. Further, in the data recording method according to the present invention, each program is divided into a plurality of tracks and recorded, and the position information of the first and last tracks of the program is recorded in a predetermined area on the recording medium. It is characterized by. A data recording device according to the present invention starts an access to a coding means for coding moving image data and audio data constituting a program, and a bit stream composed of the encoded moving image data and audio data. Entry point information indicating a plurality ...
The posting box from Eichhorn is ideal for helping children to discover different shapes and colours through play. Each shape will only fit into one hole, helping to develop the childs spatial perception. The lid of the posting box can be taken off to get the shapes out again. Certified: FSC® 100%, Licence ...
Oliver Joncus in conversation with Professor Elena Isayev: A historian who uses the ancient Mediterranean to explore migration, belonging, displacement and spatial perception By Oliver Joncus Edited by Josef Moore What is your interest on the subject of migration? The work I do is essentially on ancient migration, hospitality and asylum, trying to contextualise…
This study is a randomized, prospective, single-blinded six-week study in PD patients with freezing of gait (FOG).. This study will involve 2 study groups:. Group A - training group; Group B - no training group/controls.. Both groups will complete a gait evaluation and neuropsychological testing. Group A will also practice an in-home visuospatial task for 30 minutes, 4-6 days per week for six weeks. Group B will not complete the in-home tasks.. Participation in this study is expected to last 6-8 weeks. ...
Our library requires quite a bit of mathematics to make. to transform the internal coordinate system to any other system. Delegate composition is used to make arbitrary maps (this features makes it.. And learn science, engineering, technology and math (STEM) while they are at it. Birdsall and Rey have found. Plotting coordinates on a grid and understanding positive and negative slopes can be.. (The following is an extended and unedited version of my article published in my school Math newsletter. Point of Inflection on cubic function graph. Graphing app used: Desmos Thus the x-coordinate.. In mathematics, the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a reference point and an angle from a reference direction. The reference point (analogous to the origin of a Cartesian coordinate system) is called the pole, and the ray from the pole in the reference direction is the polar axis.. The student took her time directing ...
I should back up a little. I didnt actually think Id find the house where my MC lived. It just happened. See, when I write, I do these little visual reference boards where I find pics of everything in my story - towns, houses, apartments, cars, restaurants, parks, offices - whatever pertains to the story (thank you Google images!). When I made the board for my current novel, I got on Realtor.com and found houses for sale in Cle Elum, and found a house that would be perfect...it was big and had a large upstairs/attic with windows that could easily be an upstairs apartment. So, while Im driving around the little residential streets just to get a feel of what the houses near the downtown area look like, I turn a corner and holy-crap-on-a-crap-cracker, theres the house! Of course, I started flipping out (luckily Ive been flipping out about bizarre things since before I could walk, so this didnt faze my mother). It was the strangest feeling...this house that Ive been staring at for months ...
an analog clock can serve as a visual Reference for twelfths. at 1 o clock the hands mark off 1/12 of a circle at 2 o clock the hands mark off 2/12 of a circle and so on. how many twelfths are in each of these fractions of a circle? 1/2, 1/4, 1/3, 1/6 Math ...
Protein Express User Guide The Protocols defined in this User Guide apply to all of the LabChip instrument products running the Protein Express Assay. The LabChip GXII Touch is used for general visual reference in most examples in this guide. ...
In this poster, we propose a neural mechanism for determining allocentric locations of sensed features. We show how cortical columns can use multiple independent moving sensors to identify and locate objects. We lay out a model inspired by grid cell modules that describes how the brain computes and represents locations.
Japanese researchers examined the effect of sentence order on the comprehension of spatial information. They found that it is important for the text to be written in the same order as in the situation we walk. The study has ...
Disentangling the External Reference Frames Relevant to Tactile Localization. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Used and trusted by producers the world over, Monofilter grabs hold of your bass and secures it solidly within your mix. Intuitive controls allow you to quickly anchor the power, whilst retaining the essential character and perceived spatial characteristics. Monofilter brings back the centre of...
2004 (English)In: SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES, Vol. 18, no 1, 115-120 p.Article in journal (Refereed) Published ...
Hints: Click on a [map] link to show a map of that region. Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region. Studies with no locations are not included in the counts or on the map. Studies with multiple locations are included in each region containing locations ...
Firm Systems locations are independently operated. Hours/Schedules vary by location. For best service we advise that you call the location that is nearest you to check hours and availability. Some locations are by appointment and some accept walk-ins. Please call in advance. ...
But the Czech president does briefly react to the ClimateGate and other gates. He says that they havent influenced his views because everyone who was interested in these matters has known what was going on for many years. Well, I happen to agree. ...