Spatiotemporal Dynamics of Cortical Representations during and after Stimulus Presentation.

ABSTRACT: Visual perception is a spatiotemporally complex process. In this study, we investigated cortical dynamics during and after stimulus presentation. We observed that visual category information related to the difference between faces and objects became apparent in the occipital lobe after 63 ms. Within the next 110 ms, activation spread out to include the temporal lobe before returning to residing mainly in the occipital lobe again. After stimulus offset, a peak in information was observed, comparable to the peak after stimulus onset. Moreover, similar processes, albeit not identical, seemed to underlie both peaks. Information about the categorical identity of the stimulus remained present until 677 ms after stimulus offset, during which period the stimulus had to be retained in working memor

SUBMITTER: van de Nieuwenhuijzen ME 

PROVIDER: S-EPMC4860392 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature