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- Title
Dynamic brain sources of visual evoked responses.
- Authors
Makeig, S; Westerfield, M; Jung, T P; Enghoff, S; Townsend, J; Courchesne, E; Sejnowski, T J
- 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.
- Publication
Science (New York, N.Y.), 2002, Vol 295, Issue 5555, p690
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.1066168