Saccades toward stimuli saccades eye movements. Medical search. Frequent questions

Several decades of patient, functional imaging and neurophysiological studies have supported a model in which the lateral prefrontal cortex (PFC) acts to suppress unwanted saccades by inhibiting activity in the oculomotor system. (nih.gov)
Begin by preparing the experimental stimuli for oculomotor corrective regressions. (jove.com)
However, recent studies have shown that neurons in LIP respond to auditory stimuli during an auditory-saccade task, suggesting possible involvement of this area in auditory-to-oculomotor as well as visual-to-oculomotor processing. (caltech.edu)
We used an oculomotor deferred saccade task, in which the sensory cue was continuously present throughout the delay interval, rather than merely being transiently flashed prior to the delay interval. (nyu.edu)
This paradigm eliminated the memory component (i.e., the need to remember the location of the saccade target) and placed the emphasis squarely upon oculomotor planning. (nyu.edu)

Due to the nature of vision, we rapidly sample our visual environment using ballistic eye-movements called saccades. (gla.ac.uk)
While technological advancements have enabled the recording of gaze points during reading with high accuracy, raw eye-tracking data still requires post-processing to identify which gaze positions are part of fixations (periods of relative positional stability) and which are part of saccades (rapid ballistic eye-movements). (bournemouth.ac.uk)
Rapid, ballistic eye movements that abruptly change the point of fixation. (saskatoonvisiontherapy.com)

Eye movement data were analyzed based on a 3rd-order linear horizontal saccadic eye movement model, where the inputs to the muscle were agonist and antagonist active-state tensions that were described by pulse-slide-step waveforms with a post inhibitory rebound burst (PIRB) based on a timeoptimal controller. (longdom.org)
Human saccade data was collected using a high speed eye tracking system, and analyzed with a program written in FORTRAN, which computed parameter estimates using system identification technique for a saccadic eye movement model. (uconn.edu)

Aurora 250 is an exciting enhancement to the Aurora product line, including an increased frame rate, which allows research groups to study eye movements in more depth, and more accurately detect the start and end point of fixations and saccades. (masstlc.org)

the structure of sensory stimulus that enters through the retina is retained within V1. (gla.ac.uk)
The stimuli consisted of either visual or auditory-visual bi-sensory targets. (longdom.org)
Consequently, our current understanding describes saccades and pursuit as two outcomes of a synergistic sensorimotor process, sharing sensory inputs, anatomic pathways, and functional regulation ( Orban de Xivry and Lefèvre, 2007 ). (eneuro.org)
These findings suggest that responses to auditory stimuli are best interpreted as supramodal (cognitive or motor) responses, rather than as modality-specific sensory responses. (caltech.edu)
Auditory responses in area LIP seem to reflect the significance of auditory stimuli as potential targets for eye movements, and may differ from most visual responses in the extent to which they arc abstracted from the sensory parameters of the stimulus. (caltech.edu)
The receptive field, defined as the spatiotemporal selectivity of neurons to sensory stimuli, is central to our understanding of the neuronal mechanisms of perception. (mpg.de)

After sentence frames are created, use a separate set of participants to norm the stimuli using a closed task to ensure that the target word is not predictable from the sentence context. (jove.com)
ERPs were recorded in three tasks where directional cues presented at the beginning of each trial instructed participants to direct their attention to the cued side without eye movements (Covert task), to prepare an eye movement in the cued direction without attention shifts (Saccade task) or both (Combined task). (bbk.ac.uk)
More recent vigilance tasks have participants detect infrequent target stimuli among non-targets, and typically show an increase in misses as time on task increases. (elifesciences.org)
For example, experiments including eye tracking provide confirmation of participants' attention to information being presented. (masstlc.org)
Timing accuracy is essential in the field of research, as the technology must keep up with the quick brain processes of participants that are reacting to stimuli. (masstlc.org)
In this mixed-saccade task, participants performed eye movements towards (prosaccades) or away (antisaccades) from a peripherally occuring stimulus. (johnshopkins.edu)
In the experiment, participants had to make a speeded saccade towards a brief somatosensory stimulus applied to the finger of one hand, while their arms were either crossed or uncrossed about the body midline. (biomedcentral.com)
We analysed the eye-tracking data of 147 participants as they used a total of 15 separate website navigation menus to complete key activities. (uxpa.org)
We addressed this question by studying perisaccadic localization in a set of participants with no prior experience in eye-movement research, measuring localization performance as they practiced the saccade task. (pisavisionlab.org)
Gordon and colleagues (2023), using precision fMRI from seven participants and fMRI datasets from the Adolescent Brain Cognitive Development Study, Human Connectome Project, and UK Biobank from 50,000 individuals, found three interconnected primary motor cortex (M1) regions that participate in the integrated movement of multiple body parts. (biosourcesoftware.com)
To fill this gap, we administered a countermanding task to 15 healthy participants in which they were asked to observe the eye region of a face with the eyes shut appearing at central fixation. (uniroma1.it)
In one condition, participants were required to suppress a saccade, that was previously instructed by a gaze shift toward one of two peripheral targets, when the eyes were suddenly shut down (social condition). (uniroma1.it)
In a second condition, participants were asked to inhibit a saccade, that was previously instructed by a change in colour of one of the two same targets, when a change of color of a central picture occurred (non-social condition). (uniroma1.it)

Although erroneous saccades towards a visual stimulus are commonly labelled reflexive in patients with PFC damage or dysfunction, the latencies of most of these saccades are outside of the range of express saccades, which are triggered directly by the visual stimulus. (nih.gov)
Here we assess chronostasis across different saccade types, ranging from highly volitional (self-timed saccades, antisaccades) to highly reflexive (peripherally cued saccades, express saccades). (mit.edu)

Measure the brain's ability to execute or suppress reflexive eye movements with saccade and anti-saccade tests. (tobii.com)

Because visual acuity is much higher in the fovea than in the peripheral retina, primates continually make saccades to view points of interest with high resolution. (jneurosci.org)
No auditory activity was observed in area LIP before animals were trained to make saccades to auditory stimuli, but responses to auditory stimuli did emerge after auditory-saccade training. (caltech.edu)

There are four basic types of eye movements: saccades, smooth pursuit movements, vergence movements, and vestibulo-ocular movements. (pursuantmedia.com)
The recruitment of saccades may be utilized because of the longer period of diplopia resulting from slower vergence movements. (njit.edu)
Vertical vergence movements may also occur (ie, one eye moving upward or the other eye moving downward relative to the contralateral eye). (medscape.com)

Other temporal illusions arising in the context of movement (e.g., "intentional binding") appear to depend upon the volitional nature of the preceding motor act. (mit.edu)
Reflexogenic eye movements should be compared with volitional eye movements. (todaysgeriatricmedicine.com)
Nevertheless, people can exert volitional inhibitory control on saccadic eye movements both during their initiation and their planning. (uniroma1.it)
Little is known about the interaction between gaze direction signals and volitional inhibition of saccades. (uniroma1.it)

Saccades are the type of eye movement used to move the fovea rapidly from one point of interest to another, while a fixation is the period of time where the eye is kept aligned with the target for a certain duration, allowing for the image details to be processed. (pursuantmedia.com)
Therefore a sufficient stimulus is a conscious or subconscious desire to shift attention to a particular target away from the fovea. (pursuantmedia.com)
While we are reading or searching a visual array for a target or simply looking at a new scene, our eyes move every 200-350 ms. These eye movements serve to move the fovea (the high resolution part of the retina encompassing 2 degrees at the center of the visual field) to an area of interest in order to process it in greater detail. (scholarpedia.org)
demonstrated that catch-up saccades were less likely to occur when the target re-crosses the fovea within 40-180 ms. To date, there is no mechanistic explanation for how the trigger decision is made by the brain. (eneuro.org)
Slow, tracking eye movement designed to keep a moving stimulus on our fovea. (saskatoonvisiontherapy.com)
Fovea-small area of the retina at the back of the eye where images are reflected / inverted for transmission to the brain. (doncurrie.com)
[ 4 , 5 , 6 ] Fusional convergence and divergence are optomotor reflexes that are designed to position the eyes such that the image of regard falls on the fovea of each eye. (medscape.com)

While stimulus-response tests and stereotyped motor tasks can be carried out relatively quickly, complex innate behaviors and learned responses require more extensive monitoring or preliminary training trials. (genengnews.com)
Although eye movements have been examined for some time, it has only been in the last few decades that their measurement has led to important discoveries about psychological processes that occur during such tasks as reading, visual search , and scene perception. (scholarpedia.org)
however, in tasks like reading, visual search, and scene perception, covert attention and overt attention (the exact eye location) are tightly linked. (scholarpedia.org)
From this table, it is immediately apparent that while the values presented in the table are quite representative of the different tasks, they show a range of average fixation durations and for each of the tasks there is considerable variability both in terms of fixation durations and saccade lengths. (scholarpedia.org)
At one time, researchers believed that the eyes and the mind were not tightly linked during information processing tasks like reading, visual search, and scene perception. (scholarpedia.org)
Extracellular recordings were obtained from a total of 332 LIP neurons in two macaque monkeys, while the animals performed fixation and saccade tasks involving auditory and visual stimuli. (caltech.edu)
Eye movement patterns provide a possible explanation for why correlations are y not observed between visuospatial tasks. (edu.au)
Prior research supports that saccades increase the peak velocity of vergence during combined vergence and saccadic tasks. (njit.edu)
Eye movement also varies depending on factors such as tasks or goals (Rayner, 2009). (hcdi.net)
By categorizing sections of particular merchandising stimuli and behavioral tasks, comparisons can be drawn to better evaluate the shopping experience. (hcdi.net)

Moreover, while visual responses often had a fast transient component, responses to auditory stimuli in area LIP tended to be gradual in onset and relatively prolonged in duration. (caltech.edu)
Overall, the analyses demonstrate that responses to auditory stimuli in area LIP are dependent on auditory-saccade training, modulated by behavioral context, and characterized by slow-onset, sustained response profiles. (caltech.edu)
A peripheral visual Go/Nogo stimulus that was presented 800 ms after cue onset signalled whether responses had to be executed or withheld. (bbk.ac.uk)
The eye movement trajectories were recorded and revealed that especially in the crossed condition fast saccades occasionally started toward the incorrect (anatomically congruent) side and were corrected in-flight, resulting in a turn-around saccade (about 250 ms after tactile onset, which might reflect the completion of tactile remapping). (biomedcentral.com)
In most cases this has been measured in subjects over-trained to perform a stereotyped and unnatural task where saccades are repeatedly driven to the same location, marked by a highly salient abrupt onset. (pisavisionlab.org)
The mislocalization also remained similar when the expert observers were tested in a condition leading to less stereotypical saccadic behavior-with no abrupt onset marking the saccade target location. (pisavisionlab.org)

The neural input estimations supported the responsive neuron populations in the superior colliculus under different stimulus conditions, and indicated the double-step visual or auditory-visual stimulus may affect the synchrony of neuron firing. (longdom.org)
In this work, saccades induced by visual, auditory and auditory-visual bisensory stimuli that provided in a horizontal plane were recorded and analyzed. (uconn.edu)

The switch between these continuous and discrete eye movements is a trade-off between tolerating sustained position error (PE) when no saccade is triggered or a transient loss of vision during the saccade due to saccadic suppression. (eneuro.org)
The average vergence peak velocities were inversely correlated to the number of saccades observed within the transient portion defined as after the latency to 400. (njit.edu)

Results show several systematic differences between conditions both for general eye movement parameters such as saccade amplitude and fixation duration and for eye movement variability. (uni-luebeck.de)

The relative contribution of the recti and oblique groups depends on the horizontal position of the eye. (wikipedia.org)
Processing of the stimuli from the visual cortex occurs in three dozen different regions of the brain by modules that detect edges, vertical, horizontal, and on a slant. (luminous-landscape.com)

Importantly, the detection advantage for in-time targets was found 50 - 100 ms after saccade indicating transference of predictive signals across saccade. (gla.ac.uk)
Informed by model predictions, we hypothesized that saccade trigger time length and variability will increase when pre-saccadic predicted errors are small or visual uncertainty is high (e.g., for blurred targets). (eneuro.org)
These spatiotemporal dynamics may enhance information processing of relevant stimuli during the scanning of a visual scene, thereby assisting the selection of saccade targets and accelerating the analysis of the visual scene during free viewing. (mpg.de)
Processing in the midline regions targets movements of the axial musculature, whereas the lateral regions target movements of the appendicular musculature. (foobrdigital.com)

Kish was born with bilateral retinoblastomas, tiny cancers of the retina, which is part of the eye responsible for sensing visual information. (discovermagazine.com)
After many failed attempts to save his vision by treating the tumors with radiation and chemotherapy, his mother made the difficult decision to remove her son's right eye and left retina. (discovermagazine.com)
Because of acuity limitations in the retina, eye movements are necessary for processing the details of the array. (scholarpedia.org)
Second, each of our eyes has a significant blind spot in the place where the optic nerve leaves the retina. (luminous-landscape.com)

Eye movement characteristics in reading, scene perception, and visual search. (scholarpedia.org)
Saccade characteristics were investigated, and the results of saccadic eye movements elicited by the three different stimuli types were compared. (uconn.edu)

The eye movement effects include a slowing or complete suppression of the OKR, a shift in eye-movement direction, induction of spontaneous OKR-like movements in the absence of visual stimuli, clustering of the polarity or timing of OKR-like movements, and changes in the slope of the slow phase of the OKR-like movements. (genengnews.com)
Saccades shift the spotlight of attention. (pursuantmedia.com)
Specifically, before the initiation of a saccadic eye movement, receptive fields shrink and shift towards the saccade target. (mpg.de)
In a natural environment, saccade and vergence eye movements shift gaze in different directions and distances. (njit.edu)

This technique involves measuring an individual's gaze position on a computer screen over time with high accuracy to reveal critical information about where and how long their eyes are fixating while navigating text. (bournemouth.ac.uk)
Through this partnership, the behavioral data collected from Psychology Software Tools' E-Prime software is combined with the eye gaze data of the non-invasive Smart Eye Aurora eye tracker. (masstlc.org)
The Chronos hardware device, also provided by Psychology Software Tools, embeds digital markers in the eye gaze coordinates data stream, giving the researcher timestamps for analyzing the participant's reaction time to on-screen stimuli (e.g., text or images). (masstlc.org)
More than just heat maps of what the consumer is looking at, objective data collected from eye-tracking can provide context to the experience beyond self-report, sharing covert consumer behaviors such as gaze sequences, dwell timing or revisits on certain areas of an exposure. (hcdi.net)
Indeed, gaze direction has a significant impact on the execution of voluntary saccades of an observer since it is capable of inducing in the observer an automatic gaze following behaviour: a phenomenon named social or joint attention. (uniroma1.it)
Gaze" is the fixation of the eyes on an object or location within 3 degrees of visual angle for 100ms (0.1 seconds). (doncurrie.com)
Screen-based eye tracker, capturing gaze data at speeds up to 250 Hz. (tobii.com)
[ 3 ] Versions are movements of both eyes in the same direction (eg, right gaze in which both eyes move to the right). (medscape.com)
Yoke muscles are the primary muscles in each eye that accomplish a given version (eg, for right gaze, the right lateral rectus and left medial rectus muscles). (medscape.com)
Each extraocular muscle has a yoke muscle in the opposite eye to accomplish versions into each gaze position. (medscape.com)

There is considerable evidence that the nature of the task influences eye movements. (scholarpedia.org)
Cassidy will control the eye tracker as the researcher, Mackenzie will be the participant, and Brittany will complete the closed task. (jove.com)
Auditory responses in area LIP after auditory-saccade training were significantly stronger in the context of an auditory-saccade task than in the context of a fixation task. (caltech.edu)
Compared to visual responses, auditory responses were also significantly more predictive of movement-related activity in the saccade task. (caltech.edu)
By examining an individual's eye movements during a reading task, researchers can better understand the cognitive mechanisms engaged in comprehending written material and potentially improve interventions for those who struggle with reading due to neurological differences or other factors. (bournemouth.ac.uk)
This new model is highly consistent across all datasets, unlike previous models, which makes our model a robust, default choice that will automate this task and enable researchers across psychology and the cognitive sciences to carry out and analyse eye-tracking studies with larger amounts of text without being limited by the bottleneck of manual line assignments or the need to test multiple models. (bournemouth.ac.uk)
They were also present in the Saccade task, which was designed to discourage any concomitant covert attention shifts. (bbk.ac.uk)
The role of eye movements in attentional asymmetries has received little consideration, particularly in terms of the greyscales task. (edu.au)
Stimulus length, elevation, and presentation duration were manipulated, while monitoring eye movements during the greyscales task. (edu.au)
Considering the influence of the type of stimuli is important while evaluating the outputs, since the task and context are a huge component of decision making. (hcdi.net)
These results indicate that perisaccadic compression is a robust behavior, insensitive to the specific paradigm used to drive saccades and to the level of practice with the saccade task. (pisavisionlab.org)

This conclusion was based on the relatively long latencies of eye movements (or reaction time of the eyes) and the large variability in the fixation time measures. (scholarpedia.org)
We collected a large database of eye movements from 54 subjects on 18 high-resolution videos of outdoor scenes and measured their variability using the Normalized Scanpath Saliency, which we extended to the temporal domain. (uni-luebeck.de)

The aim of the thesis is to provide evidence of the relevance of generative models in a more naturalistic viewing paradigm (i.e. across saccades). (gla.ac.uk)
Goal-oriented human saccades were recorded under double-step paradigm. (longdom.org)

Assessing changes in the eye movements of mice treated with CNS-active drugs could complement the existing range of in vivo tests to evaluate the therapeutic efficacy, pharmacokinetics, drug receptor interactions, and toxicity of a wide range of candidate drug compounds, researchers claim. (genengnews.com)
Interestingly, the researchers suggest, spontaneous eye movements in the Huntington disease model may represent the murine correlate of the saccade errors observed in human Huntington disease patients, and "presumably be used to follow disease progression or responses to treatment in presymptomatic Huntington disease animal models. (genengnews.com)
The mechanism by which the brain decides when to trigger discrete catch-up saccades during continuous smooth pursuit has eluded researchers for decades. (eneuro.org)
The expansion box capability also allows researchers to accurately synchronize the eye tracking data from the Aurora with other sensors such as EEG. (masstlc.org)
Solmaz Shahmehr, Vice President & Head of Research Instruments at Smart Eye commented, "We are very excited to not only continue our longstanding collaboration with Psychology Software Tools, but to further develop solutions that address the needs of researchers as they navigate the challenging work of understanding the human mind. (masstlc.org)
Clinical researchers use eye tracking to explore biomarkers for cognitive impairment, enabling new tools for diagnosis, rehabilitation, and treatment. (tobii.com)
By coding the Cookie Theft picture into areas of interest, the researchers fused eye tracking data - fixation, saccades, and pupil size - with language data. (tobii.com)

The brain exerts ultimate control over both voluntary and involuntary eye movement. (wikipedia.org)
In addition to the movement of muscles, numerous areas in the brain contribute to involuntary and voluntary eye movement. (wikipedia.org)
To generate a stable representation of the world, the brain stitches together the images obtained during fixations and eliminates self-induced motion generated during saccades. (jneurosci.org)
They found that treatment elicited distinctive and characteristic eye-movement responses that could be analyzed quantitatively to confirm drug dose, duration of action, receptor specificity, blood-brain barrier penetration, and agonist-antagonist interactions. (genengnews.com)
For a long time, it was believed that saccades and smooth pursuit were controlled by independent functional and anatomic systems in the brain ( Robinson, 1986 ). (eneuro.org)
The strong connection between the visual system, the brain, and the spine leads patients to compensate for shortcomings in eye movement by adjusting their body positions or posture. (todaysgeriatricmedicine.com)
Assessing eye movements gives a window into the brain and plays a key role in ensuring these patients can maintain their independence and autonomy. (todaysgeriatricmedicine.com)
Precise and reliable visual field diagnostics is of crucial importance when diagnosing progression in eye diseases or evaluating rehabilitation after brain lesions. (bmj.com)
A functional vision evaluation is a much more in-depth evaluation of how the eyes are working together with the brain for vision, visual efficiency and visual information processing. (saskatoonvisiontherapy.com)
Visual efficiency is related to the muscles in and around the eyes, how visual information enters your brain through the eyes, tracking, eye teaming, bringing objects into focus and the ability to move the eyes in all directions. (saskatoonvisiontherapy.com)
Combining pursuits, saccades, and symbol decoding in the brain. (saskatoonvisiontherapy.com)
Our eyes capture visual stimuli which are converted into an image, to which the brain responds by organizing neurons into clusters. (kyoto-u.ac.jp)
Information flow to the brain about an object is suppressed during blinks and saccades or periods when the eye is not fixated. (doncurrie.com)
The eyes and brain permit the simulation of the real world by the mind. (luminous-landscape.com)
There is a strong connection between deficits in eye movements and various underlying brain disorders and injuries. (tobii.com)

Furthermore, for most data analysis in reading research these fixations need to be assigned to an area of interest in the reading stimulus, such as a character or word, depending on the experiment design. (bournemouth.ac.uk)
The assignment process is made non-trivial by noise present in the tracking data due to factors such as loss of calibration during an experiment, subtle head movements or pupil dilation. (bournemouth.ac.uk)
Smart Eye has responded to the needs of the field by updating their non-invasive Aurora eye tracker to reach faster speeds, resulting in higher precision data that is required by advanced experiment designs. (masstlc.org)

Foveal tracking of moving objects in the environment is accomplished by smooth pursuit eye movements. (eneuro.org)
Thus, accurate tracking requires a synergistic coordination of saccades and smooth pursuit eye movements to overcome retinal position and velocity mismatches, respectively. (eneuro.org)

Eye responses are rapid, don't require training, and show little or no adaptation. (genengnews.com)
Cognitive control is also needed when one must override responses that may otherwise be automatically elicited by stimuli in the external environment. (nyu.edu)
Hence, the purpose of this study is to assess whether the frequency of saccades within vergence responses are correlated with vergence peak velocity. (njit.edu)
A saccade detecting algorithm was utilized to compute the percentage of saccades present within all vergence responses. (njit.edu)
An increased prevalence of saccades was observed in vergence responses with reduced peak velocity, compared to responses with greater peak velocity. (njit.edu)
This may in part explain the increased presence of saccades within vergence responses with reduced peak velocities. (njit.edu)
Through building strong experimental designs and analysis plans, the quality of the eye-tracking data remains focused on understanding the real value of behavioral responses. (hcdi.net)

Experiments using simple visual stimuli and highly controlled eye movements indicate that visual sensitivity is reduced during saccades. (jneurosci.org)
We conclude that the stimuli types often used in laboratory experiments, static images and professionally cut material, are not very representative of natural viewing behavior. (uni-luebeck.de)

Primates and many other vertebrates use three types of voluntary eye movement to track objects of interest: smooth pursuit, vergence shifts and saccades. (wikipedia.org)
We investigated whether attention shifts and eye movement preparation are mediated by shared control mechanisms, as claimed by the premotor theory of attention. (bbk.ac.uk)
It is a skill that permits easy shifting of the eyes along the line of print in a book, a rapid and accurate return to the next line and quick and accurate shifts between distance and near, or from one distance to another. (saskatoonvisiontherapy.com)

Studies have shown that decreased ocular motor function can be an early sign of Parkinson's and other neurodegenerative disorders .5 Assessing eye movement can not only reveal the signs of disease, dysfunction, or degeneration that might have otherwise been missed but also monitor some of those neurodegenerative conditions known to be present. (todaysgeriatricmedicine.com)

Smart Eye , the global leader in Human Insight AI, technology that understands, supports and predicts human behavior in complex environments, and neuroscience research product and service provider Psychology Software Tools , announced a new solution that delivers direct communication between their systems in real time with millisecond-accurate markers. (masstlc.org)

A special type of eye movement, rapid eye movement, occurs during REM sleep. (wikipedia.org)
This is characterized by a series of slow eye-tracking movements, interrupted at regular intervals by rapid resetting movements (saccades) in the opposite direction. (genengnews.com)
The superior colliculus, which is older in terms of evolution, is typically less studied and considered less vital for visual perception even though it is responsible for saccades, rapid eye movement between two fixed points, as well as facial recognition. (kyoto-u.ac.jp)

They questioned the influence of cognitive factors on fixations given that eye movement latency was so long and the fixation times were so variable. (scholarpedia.org)
Saccade amplitude transition function (ATF) and response latency indicated the saccade programming mechanism. (longdom.org)

These results support the hypothesis that saccade preparation and attentional orienting are implemented by common control structures. (bbk.ac.uk)
It is concluded that, although the preparatory processes underlying saccade programming and covert attentional orienting may be based on common mechanisms, they nevertheless differ in their spatially specific effects on visual information processing. (bbk.ac.uk)

however, saccades occur during the vergence movement even though the stimulus should not stimulate a saccadic response. (njit.edu)
Given that the majority of us experience the world as one single image, it's easy to forget that our two eyes must intricately team together to make this occur. (saskatoonvisiontherapy.com)

Eye movements are a behavior that can be measured and their measurement provides a sensitive means of learning about cognitive and visual processing. (scholarpedia.org)
In all conditions PDs showed multi-stepping/hypometria of saccades consistent with a motoric deficit in executing actions based on cognitive cues. (lincoln.ac.uk)
In the past decades, eye-tracking technology has emerged as an invaluable tool for uncovering the cognitive processes involved in reading by offering unique insights into individuals' reading patterns. (bournemouth.ac.uk)
As a result, Thomas's work represents an important step forward in advancing our understanding of cognitive processes through improved methodologies for analysing large volumes of text-based eye-tracking data (paper currently under review in the IEEE Transactions on Pattern Analysis and Machine Intelligence, a high impact journal). (bournemouth.ac.uk)

Binocular eye movements are either conjugate (versions) or disconjugate (vergences). (medscape.com)

In many cases treatment caused reproducible and quantifiable changes in ocular parameters such as pupil dilation and OKR in terms of frequency, duration, polarity, and shape, both spontaneously and in response to a moving visual stimulus. (genengnews.com)
Parameter estimations were calculated using the system identification technique for saccade parameters and neural inputs. (longdom.org)

The method was designed to investigate the role of inhibition of return (IOR) in regressive eye movements during reading. (jove.com)
This method can help answer key questions related to eye movement control during reading such as the role of inhibition of return in regressive saccades. (jove.com)

Eye movements in mice also represent a readily monitored behavior, which in nonfoveate mammals such as mice include an involuntary response to a moving stimulus known as the optokinetic reflex. (genengnews.com)
Reflexes that involve eye movements are the optokinetic reflex and the vestibular ocular reflex. (todaysgeriatricmedicine.com)
The optokinetic reflex reveals whether the eyes have a quick and a slow phase. (todaysgeriatricmedicine.com)

In theory, eye movements could represent a useful behavior of CNS activity, the team continues. (genengnews.com)
Without the ability to temporarily store information on-line, one's behavior is stereotyped and largely depends upon learned stimulus-response associations. (nyu.edu)
When investigating consumer behavior and decision making during the shopping experience, eye-tracking remains a popular tool in consumer retail research. (hcdi.net)
In the last decade I have focused on the simultaneous recording and analysis of EEG and eye movement in natural viewing behavior. (lu.se)

we found that excitatory broadband high-frequency activity transients, driven by eye blinks, are suppressed in higher-level but not early visual cortex. (biorxiv.org)

Depending on where you experience the discomfort, eye pain can fall into one of two categories: Ocular pain occurs on the eye's surface, and orbital pain occurs within the eye. (pursuantmedia.com)
Ocular pain refers to discomfort around the outside of the eye, while orbital pain is usually felt deep behind the eye. (pursuantmedia.com)
Orbital pain also tends to be less sharp than ocular, although it can be caused by a variety of serious eye diseases. (pursuantmedia.com)

Evidence for the transfer of spatiotemporally predictive feedback across saccade was supported by the fMRI study presented in Chapter 3. (gla.ac.uk)

Although we have the impression that we can process the entire visual field in a single fixation, in reality we would be unable to fully process the information outside of foveal vision if we were unable to move our eyes (Rayner, 1978, 1998). (scholarpedia.org)

First select a set of at least 30 target words which are the stimuli for which word skipping and regressive eye movements will be measured. (jove.com)
However, due to visual feedback delay and sensorimotor noise, the eye can progressively lag behind the target ( Krauzlis and Lisberger, 1994a ). (eneuro.org)
When significant position error (PE) is accumulated, a catch-up saccade may be triggered to re-foveate the target. (eneuro.org)
Saccades are very fast eye movements that allow the eyes to quickly move from one target or image to another. (uconn.edu)
To date, most vigilance and rare target studies have used simple displays with static stimuli. (elifesciences.org)
Briefly presented stimuli occurring just before or during a saccadic eye movement are mislocalized, leading to a compression of visual space toward the target of the saccade. (pisavisionlab.org)
Accommodative convergence is convergence of the eyes stimulated by accommodating or focusing on a near target. (medscape.com)

Likewise, saccades and their properties were thought to be strictly governed by position inputs ( Wurtz and Optican, 1994 ). (eneuro.org)

This thesis investigates the ability of active perception to redirect predictive signals to new retinotopic locations with saccades. (gla.ac.uk)
A psychophysical study is presented in Chapter 2 which provides evidence for the transference of predictive signals across saccades. (gla.ac.uk)

Because eye movements are essentially motor movements, it takes time to plan and execute a saccade. (scholarpedia.org)

The extent of vestibular compensation and adaptation is closely related to the direction, duration, frequency, magnitude, and nature of the retraining stimulus. (medscape.com)

Psychology Software Tools' E-Prime is a user-friendly stimulus presentation software that helps its customers increase their productivity, effectiveness, and confidence in addressing the challenges they face in human behavioral research, assessment, and education. (masstlc.org)
Designed for the real world, our third-generation wearable eye tracker allows you to conduct behavioral research in a wide range of settings. (tobii.com)

Here, we utilized the broad anatomical coverage of iEEG recordings in 12 eye-tracked neurosurgical patients to test whether a similar stabilizing mechanism operates following small saccades. (biorxiv.org)

This 'classical' description emphasizing a parietal/perceptual-motor presentation may be biased because the cases mainly originate from movement disorder centers. (cmdg.org)
In the models, turn-around saccades originate from a second threshold crossing if the accumulated evidence of the initially losing alternative overtakes the first choice. (biomedcentral.com)

My main interest has to do with memory processes across consecutive eye movements. (lu.se)
This article aims to demonstrate the utilities of Matlab (MATrix LABoratory) and eye-tracker for research in psychophysics and basic processes. (bvsalud.org)

This study focuses on eye movement disorders, in particular nystagmus, and the possibility of using eye tracking as an established form of diagnosis tool. (tobii.com)

Home Member News Smart Eye Partners with Psychology Software Tools to Deliver New Eye Tracker. (masstlc.org)
This collaboration combines 35 years of Psychology Software Tools researcher software experience with Smart Eye's 20+ years eye tracking technology expertise, and builds on a recent product release of Smart Eye , including the Aurora 250 and expansion box. (masstlc.org)
Anthony Zuccolotto, President & CEO at Psychology Software Tools commented, "We are excited to continue our partnership with Smart Eye with a renewed focus on integrating E-Prime 3.0 with the 250 Hz Aurora eye tracker. (masstlc.org)
If you are interested in seeing a demo at the show, please contact Psychology Software Tools, Inc. to schedule some time, or contact Smart Eye to learn more. (masstlc.org)

Anatomy28

Organisms6

Diseases19

Chemicals and Drugs2

Analytical, Diagnostic and Therapeutic Techniques and Equipment20

Psychiatry and Psychology46

Phenomena and Processes40

Disciplines and Occupations1

Information Science4

Health Care2

Oculomotor5

Ballistic eye-movements3

Saccadic eye movement m2

Fixations and saccades1

Sensory6

Participants13

Express saccades2

Anti-saccade1

Make saccades2

Vergence movements3

Volitional4

Fovea7

Tasks10

Onset6

Auditory-visual2

Transient2

Fixation duration1

Horizontal2

Targets4

Retina4

Characteristics2

Shift4

Gaze10

Task11

Variability2

Paradigm2

Researchers7

Brain15

Experiment3

Smooth pursuit eye movements2

Responses7

Experiments2

Shifts3

Parkinson's1

Neuroscience1

Rapid3

Latency2

Attentional2

Occur2

Cognitive4

Conjugate1

Parameters2

Inhibition2

Optokinetic reflex3

Behavior4

Blinks1

Ocular3

FMRI1

Rayner1

Target7

19941

Signals2

Execute1

Duration1

Behavioral research2

Mechanism1

Originate2

Processes2

Nystagmus1

Psychology4