title: Specificity of regions processing biological motion.
abstract: Using functional magnetic resonance imaging and point light displays portraying six different human actions, we were able to show that several visual cortical regions, including human MT/V5 complex, posterior inferior temporal gyrus and superior temporal sulcus, are differentially active in the subtraction comparing biological motion to scrambled motion. Comparison of biological motion to three-dimensional rotation (of a human figure), articulated motion and translation suggests that human superior temporal sulcus activity reflects the action portrayed in the biological motion stimuli, whereas posterior inferior temporal gyrus responds to the figure and hMT/V5+ to the complex motion pattern present in biological motion stimuli. These results were confirmed with implied action stimuli.
authors.affiliation: Laboratorium voor Neuro- en Psychofysiologie, K.U. Leuven, Campus Gasthuisberg O&N, Herestraat 49, B-3000 Leuven, Belgium.
authors.forename: H
authors.initials: H
authors.lastname: Peuskens
authors.forename: J
authors.initials: J
authors.lastname: Vanrie
authors.forename: K
authors.initials: K
authors.lastname: Verfaillie
authors.forename: G A
authors.initials: GA
authors.lastname: Orban
mesh_terms: D000328:Adult; D001931:Brain Mapping / Q000379:methods*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009043:Motor Activity; D009928:Organ Specificity; D010775:Photic Stimulation