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190 results for “Eye Movements”
Evaluate the Effects of Long-term Use of Psychotropic Medications on Eye Movement Patterns With the Gaize Device
ClinicalTrials.gov study NCT07389473. IPD Sharing: UNDECIDED. Countries: 1. Publications: 3.
A Quick and Reliable Eye Movement Test to Help Diagnose ADHD in Children.
ClinicalTrials.gov study NCT07136259. IPD Sharing: UNDECIDED. Countries: 1. Publications: 8.
Effect of Eye Movement Desensitization and Reprocessing Therapy 2.0 Online Group Protocol
ClinicalTrials.gov study NCT05596903. IPD Sharing: NO. Countries: 1. Publications: 10.
Use of Eye Movement Tracking to Detect Oculomotor Abnormality in Traumatic Brain Injury Patients
ClinicalTrials.gov study NCT02776462. IPD Sharing: NO. Countries: 1. Publications: 3.
Data from: Density-dependent fitness, not dispersal movements, drives temporal variation in spatial genetic structure in dark-eyed juncos (Junco hyemalis)
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Evaluating the role of body size and habitat type in movement behavior in human-dominated systems: A frog’s eye view
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Source data of "The effect of the Müller-Lyer configuration on saccadic eye movements is not fully due to illusory perception"
<p>Source data of Experiments 1, 2 and 3 in the article of <em>the effect of the Müller-Lyer configuration on saccadic eye movements is not fully due to illusory perception</em></p>
Fast saccadic eye-movements in humans suggest that numerosity perception is automatic and direct.
<p><span>Fast saccades are rapid automatic oculomotor responses to salient and ecologically important visual stimuli such as animals and faces. Discriminating the number of friends, foe or prey may also have an evolutionary advantage. In this study participants were asked to saccade rapidly towards the more numerous of two arrays. Participants could discriminate numerosities with high accuracy and great speed, as fast as 190 ms. Intermediate numerosities were more likely to elicit fast saccades than very low or very high numerosities. Reaction-times for vocal responses (collected in a separate experiment) were slower, did not depend on numerical range, and correlated only with the slow, not the fast saccades, pointing to different systems. The short saccadic-reaction times we observe are surprising given that discrimination using numerosity estimation is thought to require a relatively complex neural circuit, with several relays of information through parietal and pre-frontal cortex. Our results suggest that fast numerosity-driven saccades may be generated on a single feed-forward pass of information recruiting a primitive system that cuts through the cortical hierarchy and rapidly transforms the numerosity information into a saccade command.</span></p>
Data from: Fixational eye movements predict visual sensitivity
During steady fixation, observers make small fixational saccades at a rate of around 1-2 per second. Presentation of a visual stimulus triggers a biphasic modulation in fixational saccade rate – an initial inhibition followed by a period of elevated rate and a subsequent return to baseline. Here we show that, during passive viewing, this rate signature is highly sensitive to small changes in stimulus contrast. By training a linear support vector machine to classify trials in which a stimulus is either present or absent, we directly compared the contrast sensitivity of fixational eye movements with individuals' psychophysical judgements. Classification accuracy closely matched psychophysical performance and predicted individuals' threshold estimates with less bias and overall error than those obtained using specific features of the signature. Performance of the classifier was robust to changes in the training set (novel subjects and/or contrasts) and good prediction accuracy was obtained with a practicable number of trials. Our results indicate a tight coupling between the sensitivity of visual perceptual judgements and fixational eye control mechanisms. This raises the possibility that fixational saccades could provide a novel and objective means of estimating visual contrast sensitivity without the need for observers to make any explicit judgement.
Data from: Eye and head movements are complementary in visual selection
In the natural environment, visual selection is accomplished by a system of nested effectors, moving the head and body within space and the eyes within the visual field. However, it is not yet known if the principles of selection for these different effectors are the same or different. We used a novel gaze-contingent display in which an asymmetric window of visibility (a horizontal or vertical slot) was yoked to either head or eye position. Participants showed highly systematic changes in behaviour, revealing clear differences in the principles underlying selection by eye and head. Eye movements were more likely to move in the direction of visible information—horizontally when viewing with a horizontal slot, and vertically with a vertical slot. Head movements showed the opposite and complementary pattern, moving to reveal new information (e.g. vertically with a horizontal slot and vice versa). These results are consistent with a nested system in which the head favours exploration of unknown regions, while the eye exploits what can be seen with finer-scale saccades.
Effects of aging on eye movements in the real world
<p>The effects of aging on eye movements are well studied in the laboratory. Increased saccade latencies or decreased smooth-pursuit gain are well established findings. The question remains whether these findings are influenced by the rather untypical environment of a laboratory; that is, whether or not they transfer to the real world. We measured 34 healthy participants between the age of 25 and 85 during two everyday tasks in the real world: (I) walking down a hallway with free gaze, (II) visual tracking of an earth-fixed object while walking straight-ahead. Eye movements were recorded with a mobile light-weight eye tracker, the EyeSeeCam (ESC). We find that age significantly influences saccade parameters. With increasing age, saccade frequency, amplitude, peak velocity, and mean velocity are reduced and the velocity/amplitude distribution as well as the velocity profile become less skewed. In contrast to laboratory results on smooth pursuit, we did not find a significant effect of age on tracking eye-movements in the real world. Taken together, age-related eye-movement changes as measured in the laboratory only partly resemble those in the real world. It is well-conceivable that in the real world additional sensory cues, such as head-movement or vestibular signals, may partially compensate for age-related effects, which, according to this view, would be specific to early motion processing. In any case, our results highlight the importance of validity for natural situations when studying the impact of aging on real-life performance.</p>
Eye movements' recordings, related to the manuscript 'Saccadic compression of time as a marker for Developmental Dyslexia'
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Palatal myoclonus, abnormal eye movements and olivary hypertrophy in GAD65-related disorder
<p>We report a patient with GAD65-Abs with relapsing diplopia, cerebellar syndrome, and palatal myoclonus with hypertrophy of the inferior olivary nuclei (ION) seen on 1.5T MRI and a dentato-rubro-olivary pathway lesion on 7T MRI.</p>
Investigating the correlation between eye movement characteristics and shooting accuracy of basketball players during 2-Point shots at various exercise intensities
<p><span><span>调查<span>相关性</span></span><a name="_Hlk164072066"></a><a name="_Hlk164076538"></a><span><span>篮球运动员在不同运动强度下两分<span>球投篮</span>时的眼球运动特征和投篮命中率</span><a name="_Hlk168497143"></a><a name="_Hlk168497189"></a><a name="_Hlk168325924"></a><a name="_Hlk168497204"></a></span></span></p>
Data from: An extensive dataset of eye movements during viewing of complex images
We present a dataset of free-viewing eye-movement recordings that contains more than 2.7 million fixation locations from 949 observers on more than 1000 images from different categories. This dataset aggregates and harmonizes data from 23 different studies conducted at the Institute of Cognitive Science at Osnabrück University and the University Medical Center in Hamburg-Eppendorf. Trained personnel recorded all studies under standard conditions with homogeneous equipment and parameter settings. All studies allowed for free eye-movements, and differed in the age range of participants (~7-80 years), stimulus sizes, stimulus modifications (phase scrambled, spatial filtering, mirrored), and stimuli categories (natural and urban scenes, web sites, fractal, pink-noise, and ambiguous artistic figures). The size and variability of viewing behavior within this dataset presents a strong opportunity for evaluating and comparing computational models of overt attention, and furthermore, for thoroughly quantifying strategies of viewing behavior. This also makes the dataset a good starting point for investigating whether viewing strategies change in patient groups.
Novel associations of BST1 and LAMP3 with rapid eye movement sleep behavior disorder: supplementary data
<p><b>Objective:</b> To examine the role of genes identified through genome-wide association studies (GWASs) of Parkinson disease (PD) in the risk of isolated rapid-eye-movement (REM) sleep behavior disorder (iRBD).</p> <p><b>Methods:</b> We fully sequenced 25 genes previously identified in GWASs of PD, in a total of 1,039 iRBD patients and 1,852 controls. The role of rare heterozygous variants in these genes was examined using burden tests. The contribution of biallelic variants was further tested. To examine the potential impact of rare nonsynonymous <i>BST1</i> variants on the protein structure, we performed <i>in silico</i> structural analysis. Finally, we examined the association of common variants using logistic regression adjusted for age and sex.</p> <p><b>Results:</b> We found an association between rare heterozygous nonsynonymous variants in <i>BST1</i> and iRBD (<i>p</i>=0.0003 at coverage >50X and 0.0004 at >30X), mainly driven by three nonsynonymous variants (p.V85M, p.I101V and p.V272M) found in 22 (1.2%) controls vs. two (0.2%) patients. All three variants seem to be loss-of-function variants with a potential effect on the protein structure and stability. Rare non-coding heterozygous variants in <i>LAMP3</i> were also associated with iRBD (<i>p</i>=0.0006 at >30X). We found no association between rare heterozygous variants in the rest of genes and iRBD. Several carriers of biallelic variants were identified, yet there was no overrepresentation in iRBD.</p> <p><b>Conclusion:</b> Our results suggest that rare coding variants in <i>BST1 </i>and rare non-coding variants in<i> LAMP3 </i>are associated with iRBD. Additional studies are required to replicate these results and examine whether loss-of-function of <i>BST1 </i>could be a therapeutic target.</p>
Figure 4 from: Klein A (2016) Data-Visual Relationships to Subject Performance and Eye Movements. Research Ideas and Outcomes 2: e8814. https://doi.org/10.3897/rio.2.e8814
Figure 4 - Relational operators - w, x, y, and z are all optional and refer to any attribute or operator
Figure 1 from: Klein A (2016) Data-Visual Relationships to Subject Performance and Eye Movements. Research Ideas and Outcomes 2: e8814. https://doi.org/10.3897/rio.2.e8814
Figure 1 - Methods pipeline (A) Each data feature (scale, dimensionality, etc., defined by the data taxonomy), has attributes (e.g., scale may be set to nominal, ordinal, or ratio). The combination of attribute settings form (B) a data structure, which in turn is amenable to certain (C) visualization methods (defined by the visual taxonomy). When a visualization method is used to perform (D) a set of tasks, (E) performance and eye movement data are recorded for each of N subjects.
Eye movement data
<p>Eye movement data during free throws</p>
Effect of Eye Movement on Toric Lens Orientation and Visual Acuity
ClinicalTrials.gov study NCT00584831. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.