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dc.contributor.authorMüller, Matthias Men_UK
dc.contributor.authorTrautmann, Mireilleen_UK
dc.contributor.authorKeitel, Christianen_UK
dc.description.abstractShifting attention from one color to another color or from color to another feature dimension such as shape or orientation is imperative when searching for a certain object in a cluttered scene. Most attention models that emphasize feature-based selection implicitly assume that all shifts in feature-selective attention underlie identical temporal dynamics. Here, we recorded time courses of behavioral data and steady-state visual evoked potentials (SSVEPs), an objective electrophysiological measure of neural dynamics in early visual cortex to investigate temporal dynamics when participants shifted attention from color or orientation toward color or orientation, respectively. SSVEPs were elicited by four random dot kinematograms that flickered at different frequencies. Each random dot kinematogram was composed of dashes that uniquely combined two features from the dimensions color (red or blue) and orientation (slash or backslash). Participants were cued to attend to one feature (such as color or orientation) and respond to coherent motion targets of the to-be-attended feature. We found that shifts toward color occurred earlier after the shifting cue compared with shifts toward orientation, regardless of the original feature (i.e., color or orientation). This was paralleled in SSVEP amplitude modulations as well as in the time course of behavioral data. Overall, our results suggest different neural dynamics during shifts of attention from color and orientation and the respective shifting destinations, namely, either toward color or toward orientation.en_UK
dc.publisherMIT Press - Journalsen_UK
dc.relationMüller MM, Trautmann M & Keitel C (2016) Early Visual Cortex Dynamics during Top–Down Modulated Shifts of Feature-Selective Attention. Journal of Cognitive Neuroscience, 28 (4), pp. 643-655.
dc.rightsPublisher policy allows this work to be made available in this repository. Published in Journal of Cognitive Neuroscience, Volume 28, Issue 4, April 2016, p.643-655 by MIT Press. The original publication is available at:
dc.titleEarly Visual Cortex Dynamics during Top–Down Modulated Shifts of Feature-Selective Attentionen_UK
dc.typeJournal Articleen_UK
dc.citation.jtitleJournal of Cognitive Neuroscienceen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationUniversity Leipzigen_UK
dc.contributor.affiliationUniversity Leipzigen_UK
dc.contributor.affiliationUniversity of Glasgowen_UK
dc.description.refREF Compliant by Deposit in Stirling's Repositoryen_UK
Appears in Collections:Psychology Journal Articles

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