65,179 research outputs found
Saccadic suppression measured by steady-state visual evoked potentials
No full text<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>
Attention is allocated closely ahead of the target during smooth pursuit eye movements: evidence from EEG frequency tagging
No full text<p>Dataset relative to the following publication:</p>
<p>Chen, J., Valsecchi, M. & Gegenfurtner, K.R. (2017). Attention is allocated closely ahead of the target during smooth pursuit eye movements: Evidence from EEG frequency tagging. <strong>Neuropsychologia</strong>, doi: 10.1016/j.neuropsychologia.2017.06.024.</p>
<p>Please refer to "data description.txt" in each experiment for details about the data. </p>
Dynamic re-calibration of perceived size in fovea and periphery through predictable size changes
No full text<p>Dataset relative to the following publication:</p>
<p>Valsecchi, M. & Gegenfurtner, K.R (2016). Dynamic re-calibration of perceived size in fovea and periphery through predictable size changes. Current Biology, 26, 59-63.</p>
<p>Each folder contains the data relative to one experiment and the script that was used to generate them. </p>
<p>Each data folder contains a description of the data format which should be sufficient to replicate the analyses as performed in the paper. </p>
<p>Additional info can be deducted fromt he experimental scripts.</p>
Role of motor execution in the ocular tracking of self-generated movements
No full text<p>Dataset relative to the following publication:</p>
<p>Chen, J., Valsecchi, M. & Gegenfurtner, K.R. (2016). Role of motor execution in the ocular tracking of self-generated movements. <em>Journal of Neurophysiology, </em>DOI: 10.1152/jn.00574.2016</p>
<p>Please refer to "data description.txt" for details about the data. Additional information can be deducted from the experimental scripts.</p>
Enhanced brain responses to color during smooth pursuit eye movements
No full text<p>Dataset relative to the following publication:</p>
<p>Chen, J., Valsecchi, M. & Gegenfurtner, K.R. (2017). Enhanced brain responses to color during smooth pursuit eye movements. <em>Journal of Neurophysiology, </em>DOI: 10.1152/jn.00208.2017</p>
<p>Please refer to "data description.txt" for details about the data. </p>
LRP predicts smooth pursuit eye movement onset during the ocular tracking of self-generated movements
No full text<p>Dataset relative to the following publication:</p>
<p>Chen, J., Valsecchi, M. & Gegenfurtner, K.R. (2016). LRP predicts smooth pursuit eye movement onset during the ocular tracking of self-generated movements. <em>Journal of Neurophysiology, </em>in press</p>
<p>Each folder contains the data relative to one experiment and the script that was used to generate them. Please refer to "Description on data format.txt" for the usage of the data.</p>
<p>Additional information can be deducted from the experimental scripts.</p>
Selection of visual information for lightness judgements by eye movements
No full textWhen judging the lightness of objects, the visual system has to take into account many factors such as shading, scene geometry, occlusions or transparency. The problemthen is to estimate global lightness based on a number of local samples that differ in luminance. Here,we showthat eye fixations play a prominent role in this selection process. We explored a special case of transparency for which the visual system separates surface reflectance from interfering conditions to generate a layered image representation. Eye movements were recorded while the observers matched the lightness of the layered stimulus. We found that observers did focus their fixations on the target layer, and this sampling strategy affected their lightness perception. The effect of image segmentation on perceived lightness was highly correlated with the fixation strategy and was strongly affected whenwe manipulated it using a gaze-contingent display. Finally, we disrupted the segmentation process showing that it causally drives the selection strategy. Selection through eye fixations can so serve as a simple heuristic to estimate the target reflectance. © 2013 The Author(s) Published by the Royal Society. All rights reserved
Data pertaining to "An evaluation of different measures of color saturation"
No full textThese data sets pertain to the article
Schiller, F., Valsecchi, M., & Gegenfurtner, K. R. (2017). An evaluation of different measures of color saturation. Vision Research. doi: 10.1016/j.visres.2017.04.012.
A description of the data sets can be found in the ReadMe.pdf file. Please contact [email protected] if you have further questions
Perceived numerosity is reduced in peripheral vision
No full textIn four experiments we investigated the perception of numerosity in the peripheral visual field. We found that the perceived numerosity of a peripheral cloud of dots was judged to be inferior to the one of a central cloud of dots, particularly when the dots were highly clustered. Blurring the stimuli accordingly to peripheral spatial frequency sensitivity did not abolish the effect and had little impact on numerosity judgments. In a dedicated control experiment we ruled out that the reduction in peripheral perceived numerosity is secondary to a reduction of perceived stimulus size. We suggest that visual crowding might be at the origin of the observed reduction in peripheral perceived numerosity, implying that numerosity could be partly estimated through the individuation of the elements populating the array. © 2013 ARVO
The Ankobra Gold Route. Studies in the Historica Relastionship between Western Ghana and the Dutch
No full textThe volume includes fourteen papers all connected with the Western Region of Ghana and its historical interaction with the Dutch. The volume is divided into three section: 1- Historical and Anthropological Reviews, 2. Archaeological Studies, 3. Historiography of the Ankobra Gold Rout
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