Report

Dynamic Brain Sources of Visual Evoked Responses

Science  25 Jan 2002:
Vol. 295, Issue 5555, pp. 690-694
DOI: 10.1126/science.1066168

You are currently viewing the abstract.

View Full Text
As a service to the community, AAAS/Science has made this article free with registration.

This article has a correction. Please see:

Abstract

It has been long debated whether averaged electrical responses recorded from the scalp result from stimulus-evoked brain events or stimulus-induced changes in ongoing brain dynamics. In a human visual selective attention task, we show that nontarget event-related potentials were mainly generated by partial stimulus-induced phase resetting of multiple electroencephalographic processes. Independent component analysis applied to the single-trial data identified at least eight classes of contributing components, including those producing central and lateral posterior alpha, left and right mu, and frontal midline theta rhythms. Scalp topographies of these components were consistent with their generation in compact cortical domains.

  • * To whom correspondence should be addressed. E-mail: smakeig{at}ucsd.edu

View Full Text

Cited By...