Oxyopia Abstract

March 8, 2002
Noon
489 Minor Hall

Steven Hillyard, PhD
Department of Neurosciences, University of California, San Diego
Host: Stanley Klein

Title

"The role of primary visual cortex in spatial selective attention"

Abstract

Neuroimaging studies in humans and neurophysiological studies in monkeys have shown that neural activity in primary visual cortex (area V1) is enhanced in a retinotopic manner when attention is focused on a stimulus location in the visual fields. It is unclear, however, whether spatial attention modulates the initial evoked activity in area V1 or influences longer latency stimulus processing, perhaps due to feedback influences from higher visual areas. This question is addressed by combined recordings of visual event-related potentials and fMRI in subjects performing selective attention tasks.

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