Extracting 3D from motion: differences in human and monkey intraparietal cortex.
We compared three-dimensional structure-from-motion (3D-SFM) processing in awake monkeys and humans using functional magnetic resonance imaging. Occipital and midlevel extrastriate visual areas showed similar activation by 3D-SFM stimuli in both species. In contrast, intraparietal areas showed significant 3D-SFM activation in humans but not in monkeys. This suggests that human intraparietal cortex contains visuospatial processing areas that are not present in monkeys.
Vanduffel
W
W
Laboratorium voor Neuro- en Psychofysiologie, Katholieke Universiteit Leuven, Campus Gasthuisberg, Herestraat 49, Leuven B-3000, Belgium. wim@nmr.mgh.harvard.edu
Fize
D
D
Peuskens
H
H
Denys
K
K
Sunaert
S
S
Todd
J T
JT
Orban
G A
GA
D000818:Animals; D001288:Attention; D001921:Brain / Q000502:physiology; D001931:Brain Mapping; D003463:Cues; D003867:Depth Perception / Q000502:physiology*; D006801:Humans; D008253:Macaca mulatta; D008279:Magnetic Resonance Imaging; D008297:Male; D009039:Motion Perception / Q000502:physiology*; D010296:Parietal Lobe / Q000502:physiology*; D010775:Photic Stimulation; D013045:Species Specificity; D013702:Temporal Lobe / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology; D014795:Visual Pathways / Q000502:physiology*