Neuropsychological dissociations between motion and form perception suggest functional organization in extrastriate cortical regions in the human brain.
In this review of neuropsychological case studies, a number of dissociations are shown between different visual abilities including low-level motion perception, static form perception, form-from-motion perception and biological motion perception. These dissociations reveal counter-intuitive results. Specifically, higher level form-from-motion perception can persist despite deficits in low-level motion perception and static form perception. To account for these dissociations, we present a model of functional organization and identify future directions for investigations of higher order form-from-motion perception.
Matheson
Heath E
HE
Department of Psychology, Dalhousie University, Halifax Nova Scotia, Canada. heathmatheson@dal.ca
McMullen
Patricia A
PA
D001288:Attention / Q000502:physiology; D002540:Cerebral Cortex / Q000502:physiology*; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D009039:Motion Perception / Q000502:physiology*; D009483:Neuropsychological Tests; D010775:Photic Stimulation