Extracting 3D from Motion: Differences in Human and Monkey Intraparietal Cortex

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Science  11 Oct 2002:
Vol. 298, Issue 5592, pp. 413-415
DOI: 10.1126/science.1073574

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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.

  • * These authors contributed equally to this work.

  • To whom correspondence should be addressed. E-mail: wim{at} or wim.vanduffel{at}

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