title: Global effects of feature-based attention in human visual cortex.
abstract: The content of visual experience depends on how selective attention is distributed in the visual field. We used functional magnetic resonance imaging (fMRI) in humans to test whether feature-based attention can globally influence visual cortical responses to stimuli outside the attended location. Attention to a stimulus feature (color or direction of motion) increased the response of cortical visual areas to a spatially distant, ignored stimulus that shared the same feature.
authors.affiliation: The Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, California 92037, USA.
authors.forename: Melissa
authors.initials: M
authors.lastname: Saenz
authors.forename: Giedrius T
authors.initials: GT
authors.lastname: Buracas
authors.forename: Geoffrey M
authors.initials: GM
authors.lastname: Boynton
mesh_terms: D001288:Attention / Q000502:physiology*; D003116:Color; D003463:Cues; D017352:Echo-Planar Imaging; D005403:Fixation, Ocular / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009039:Motion Perception / Q000502:physiology; D010775:Photic Stimulation / Q000379:methods; D014793:Visual Cortex / Q000502:physiology*