title: Direct intracranial recording of body-selective responses in human extrastriate visual cortex.
abstract: We recorded intracranial local field potentials (iLFPs) in right extrastriate visual cortex of a patient prior to surgery for epilepsy. Visual evoked potentials revealed a highly selective response to images of bodies, relative to faces, mammals, and tools, which was restricted to a focal region in the lateral occipitotemporal cortex that corresponds to the location of the extrastriate body area (EBA). Body-selective activity started around 190 ms and peaked 260 ms post-stimulus onset. These findings provide the first direct electrophysiological evidence for an early visual processing stage in human lateral occipitotemporal cortex that is specialized for processing human body shapes.
authors.affiliation: Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland. gilles.pourtois@medecine.unige.ch
authors.forename: Gilles
authors.initials: G
authors.lastname: Pourtois
authors.forename: Marius V
authors.initials: MV
authors.lastname: Peelen
authors.forename: Laurent
authors.initials: L
authors.lastname: Spinelli
authors.forename: Margitta
authors.initials: M
authors.lastname: Seeck
authors.forename: Patrik
authors.initials: P
authors.lastname: Vuilleumier
mesh_terms: D000328:Adult; D001931:Brain Mapping; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D008297:Male; D009778:Occipital Lobe / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology*