The folding fingerprint of visual cortex reveals the timing of human V1 and V2.

ABSTRACT: Primate neocortex contains over 30 visual areas. Recent techniques such as functional magnetic resonance imaging (fMRI) have successfully identified many of these areas in the human brain, but have been of limited value for revealing the temporal dynamics between visual areas. The electroencephalogram (EEG) provides information with high temporal precision, but has had limited success separating out the signals from individual neighboring cortical areas. Consequently, controversies exist over the temporal dynamics across cortical areas. In order to address this problem we developed a new method to identify the sources of the EEG. An individual's unique cortical pattern of sulci and gyri along with a visual area's functional retinotopic layout provides a folding fingerprint that predicts sp

SUBMITTER: Ales J 

PROVIDER: S-EPMC2818454 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature