Selective attention to spatial frequency gratings affects visual processing as early as 60 msec. poststimulus.

Abstract

Event-related potentials (ERPs) were recorded from occipital sites to investigate early selection mechanisms and to determine the time at which attention modifies the processing activity of the visual cortex in humans. 19 right-handed participants served as paid volunteers. The task consisted in paying selective attention to a combination of spatial… (More)

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