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59 results for “saccades”
Execution of saccadic eye movements affects speed perception
<p>This depository contains the data from different experiments regarding the perceived speed of moving targets tracked with different oculomotor behavior.</p> <p>The folders "Gap Paradigm" and "Step Paradigm" contain the main data for the manuscript. The folders "Vertical Offset Control" and "Awareness of Saccades" data from additional control experiments.</p> <p>In the folders "Gap Paradigm" and "Step Paradigm" you will find additional folders seperating the conditions for the collected data. One "Pilot" Folder contains the data used in the pilot experiment to determine the relevant eye crossing times. The "Speed Discrimination" Folder contains the files where participants made judgements about moving objects while tracking it with the eyes. In the "Fixation" folder you find the data for the fixation control where observes saw the same stimulus as during the speed discrimination task, but where not allowed to track the moving object.</p> <p>For each of the experiments we have a folder for the seperate blocks of the participant, which contains a logfile which specifys the parameters used for all trials and seperate files which contain information about the eye position during each trial.</p> <p>The structure of the eye position files is always the same: time, x-position, y-position, events marked by the eyelink. The x- and y-position are coded in pixels on the screen. The parameters specified in the log-fileare explained in an additional readme file.</p>
Data: Optimal trans-saccadic integration relies on visual working memory
<p>Dataset for the published paper: </p> <p>Stewart, E. E. M., & Schütz, A. C. (2018). Optimal Trans-saccadic integration relies on visual working memory. <em>Vision research</em>.</p> <p>DOI: <a href="https://doi.org/10.1016/j.visres.2018.10.002">10.1016/j.visres.2018.10.002</a></p>
Corrective saccades influence velocity judgments and interception
<p>Here you can find the data for the paper "Corrective saccades influence velocity judgments and interception" by</p> <p>Alexander Goettker, Eli Brenner, Karl Gegenfurtner & Cristina de la Malla.</p>
Saccades Exert Spatial Control of Motion Processing for Smooth Pursuit Eye Movements
<p>Saccades modulate the relationship between visual motion and smooth eye movement. Before a saccade, pursuit eye movements reflect a vector average of motion across the visual field. After a saccade, pursuit primarily reflects the motion of the target closest to the endpoint of the saccade. We tested the hypothesis that the saccade produces a spatial weighting of motion around the endpoint of the saccade. Using a moving pursuit stimulus that stepped to a new spatial location just before a targeting saccade, we controlled the distance between the endpoint of the saccade and the position of the moving target. We demonstrate that the smooth eye velocity following the targeting saccade weights the presaccadic visual motion inputs by the distance from their location in space to the endpoint of the saccade, defining the extent of a spatiotemporal filter for driving the eyes. The center of the filter is located at the endpoint of the saccade in space, not at the position of the fovea. The filter is stable in the face of a distracter target, is present for saccades to stationary and moving targets, and affects both the speed and direction of the postsaccadic eye movement. The spatial filter can explain the target-selecting gain change in postsaccadic pursuit, and has intriguing parallels to the process by which perceptual decisions about a restricted region of space are enhanced by attention. The effect of the spatial saccade plan on the pursuit response to a given retinal motion describes the dynamics of a coordinate transformation.</p>
Data: Transsaccadic integration benefits are not limited to the saccade target
<p>Dataset for article "Transsaccadic integration benefits are not limited to the saccade target". doi:10.1152/jn.00420.2019.</p> <p> </p> <p> </p>
Data for: Distinguishing externally- from saccade-induced motion in visual cortex
Open the record for dataset details and reuse information.
A new type of mouse gaze shift is led by directed saccades
Open the record for dataset details and reuse information.
A comparison of the temporal and spatial properties of trans-saccadic perceptual re-calibration and saccadic adaptation
<p>This Dataset was used in the paper entitled "A comparison of the temporal and spatial properties of trans-saccadic perceptual re-calibration and saccadic adaptation", published in the Journal of Vision.</p> <p>Inside the folder are three subfolders, one for Experiment 1, one for the Adjustment condition of Experiment 2 and one for the Saccade Adaptation condition of Experiment 2.</p> <p>Each subfolder contains a DATA FORMAT DESCRIPTION.txt file that details the meaning of the single files.</p>
Data from: Predicted tracking error triggers catch-up saccades during smooth pursuit
For foveated animals, visual tracking of moving stimuli requires the synergy between saccades and smooth pursuit eye movements. Deciding to trigger a catch-up saccade during pursuit influences the quality of visual input. This decision is a trade-off between tolerating sustained position error when no saccade is triggered or a transient loss of vision during the saccade due to saccadic suppression. Although catch-up saccades have been extensively investigated, it remains unclear how the trigger decision is made by the brain. de Brouwer et al (2002) demonstrated that catch-up saccades were less likely to occur when the expected time to foveate a target using pursuit alone is between 40 and 180ms into the future, referred to as the smooth zone. However, this descriptive result lacks a mechanistic explanation for how the trigger decision is made. More recently, we proposed a decision model (Coutinho et al., 2018) that relies on a probabilistic estimation of predicted position error (PEpred) during visual tracking. To test the model predictions, we investigated how human participants combined predicted position error, retinal slip, and the uncertainty in those estimates to make trigger decisions. We found a significant effect of the pre-saccadic magnitude of PEpred on trigger time and occurrence of catch-up saccades. To test the role of uncertainty, we blurred the moving target which led to longer and more variable saccade trigger times and more smooth pursuit trials, consistent with model predictions. As predicted by our model, large PEpred (>10deg) produced early saccades regardless of the level of uncertainty while saccades preceded by small PEpred (<10deg) were significantly modulated by high uncertainty. Our model also predicted increased signal dependent noise as retinal slip increases, which resulted in longer saccade trigger times and more smooth trials. In conclusion, the data supports our hypothesized role of PEpred in deciding when to trigger a catch-up saccade during smooth pursuit while taking into account uncertainty in sensory estimates.
Microsaccades inhibition triggered by a repetitive visual distractor is not subject to habituation: implications for the programming of reflexive saccades
<p>Dataset relative to the manuscript entitled "<strong>Microsaccades inhibition triggered by a repetitive visual distractor is not subject to habituation: implications for the programming of reflexive saccades</strong>"</p>
Dataset from 'Billino,J., Hennig, J., & Gegenfurtner K.R. (2016). Association between COMT genotype and the control of memory guided saccades: Individual differences in healthy adults reveal a detrimental role of dopamine. Vision Research. doi: 10.1016/j.visres.2016.10.001'
<p>Dataset associated with the following publication:</p> <p>Billino,J., Hennig, J., & Gegenfurtner K.R. (2016). Association between COMT genotype and the control of memory guided saccades: Individual differences in healthy adults reveal a detrimental role of dopamine. Vision Research. doi: 10.1016/j.visres.2016.10.001 <span><a></a></span></p> <p>--------------------------------------------------------------</p> <p>The folder contains 4 data files and 1 description file providing column labels.<br> The data file 'maindata.txt' contains the complete dataset including all analyzed parameters.<br> The data file 'accuracybydelay.txt' contains accuracy data across delay conditions, providing the dataset for Figure 3A.<br> The data file 'accuracybyamplitude.txt' contains accuracy data across target amplitude conditions, providing the dataset for Figure 3B.<br> The data file 'singlesublanding.txt' contains landing positions of primary memory guided saccades from three subjects of different genotype groups, providing the dataset for Figure 3C.</p> <p>-------------------------------------------------------------</p> <p>For further questions, please contact:<br> jutta.billino[at]psychol.uni-giessen.de</p>
Dataset from 'Age effects on saccadic adaptation: Evidence from different paradigms reveals specific vulnerabilities', Journal of Vision, 17(6):9, 1-18. DOI: 10.1167/17.6.9
<p>Dataset associated with the following publication:</p> <p>Huang, J., Gegenfurtner K., Schütz, A.C., & Billino, J. (2017). Age effects on saccadic adaptation: Evidence from different paradigms reveals specific vulnerabilities. Journal of Vision, 17(6:9, 1-18. DOI: 10.1167/17.6.9 <span><a></a></span></p> <p>--------------------------------------------------------------</p> <p>For each experiment one folder is provided.</p> <p>Each folder contains 2 data files and 1 description file providing column labels.<br> One data file contains data on saccadic eye movements, the other one gives measures of executive control.</p> <p>-------------------------------------------------------------</p> <p> </p>
Data: Trans-saccadic integration is dominated by early, independent noise
<p>Data for "Trans-saccadic integration is dominated by early, independent noise"</p>
Saccadic suppression measured by steady-state visual evoked potentials
<p>Dataset related to the following publication:</p> <p>Chen, J., Valsecchi, M. & Gegenfurtner, K.R. (2019). Saccadic suppression measured by steady-state visual evoked potentials. <em>Journal of Neurophysiology, DIO: 10.1152/jn.00712.2018</em></p> <p>Please refer to "data description.txt" for details about the data. </p>
Competition between salience and informational value for saccade adaptation
<p>Dataset from the following publication:</p> <p>Wolf, C., Wagner, I., & Schütz, A.C. (under review). Competition between salience and informational value for saccade adaptation. <em>Journal of Vision</em>.</p> <p>For every experiment, there is a zip folder with the underlying data. Column descriptions can be found in pdf files. More informations can be found in the README.txt files in every folder.</p> <p>For further questions, please contact:<br> chr.wolf[at]wwu.de or a.schuetz[at]uni.marburg.de</p>
Supplementary Information: Tracking an Occluded Visual Target with Sequences of Saccades
<p>Supplementary movie for the article "Tracking an Occluded Visual Target with Sequences of Saccades", showing the design and gaze behaviour in visual tracking with intermittent occlusions. Raw gaze data also provided.</p>
Impairments of saccadic and reaching adaptation in Essential Tremor are linked to movement execution - Dataset
<p>Data used for the publication "Impairments of saccadic and reaching adaptation in Essential Tremor are linked to movement execution" https://doi.org/10.1101/2023.04.21.537795</p>
Covert-saccades, Dynamic Visual Acuity and Quality of Life
ClinicalTrials.gov study NCT02753179. IPD Sharing: NO. Countries: 1. Publications: 1.
Saccadic Eye Movements in Patients With Niemann-Pick Type C Disease
ClinicalTrials.gov study NCT00316498. IPD Sharing: Not stated. Countries: 2. Publications: 1.
Saccadic Eye Movements Are Impaired In Glaucoma
ClinicalTrials.gov study NCT01254058. IPD Sharing: Not stated. Countries: 1. Publications: 2.
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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.
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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.