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Extracting 3D from Motion: Differences in Human and Monkey Intraparietal Cortex
W. Vanduffel,12*D. Fize,1*H. Peuskens,1*K. Denys,1S. Sunaert,3J. T. Todd,4G. A. Orban1
We compared three-dimensional structure-from-motion (3D-SFM)
processing in awake monkeys and humans using functional magneticresonance imaging. Occipital and midlevel extrastriate visualareas
showed similar activation by 3D-SFM stimuli in both species.In
contrast, intraparietal areas showed significant 3D-SFM activationin
humans but not in monkeys. This suggests that human intraparietalcortex contains visuospatial processing areas that are not presentin
monkeys.
1 Laboratorium voor Neuro- en Psychofysiologie,
Katholieke Universiteit Leuven, Campus Gasthuisberg, Herestraat 49, Leuven B-3000, Belgium.
2 MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging, 13th Street, Building 149, Charlestown, MA 02129, USA.
3 Afdeling Radiologie,
UZ Gasthuisberg, Leuven B-3000, Belgium.
4 Department of Psychology, Ohio State University,
Columbus, OH 43210, USA.
*
These authors contributed equally to this work.
To whom correspondence should be addressed. E-mail:
wim{at}nmr.mgh.harvard.edu or wim.vanduffel{at}med.kulcuven.ac.be
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Charles E. Connor (11 October 2002) Science298 (5592), 376.
[DOI: 10.1126/science.1078095] |Summary »|Full Text »|PDF »
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