Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 102, Issue 19, Pages 6996-7001Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.0502605102
Keywords
non-human primate; visual category representations
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Funding
- NEI NIH HHS [R01 EY-11347, R01 EY011347] Funding Source: Medline
- NIMH NIH HHS [R01 MH064043, R01 MH-64043, P50 MH062196, P50 MH-62196] Funding Source: Medline
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Human neuroimaging studies suggest that areas in temporal cortex respond preferentially to certain biologically relevant stimulus categories such as faces and bodies. Single-cell studies in monkeys have reported cells in inferior temporal cortex that respond selectively to faces, hands, and bodies but provide little evidence of large clusters of category-specific cells that would form areas. We probed the category selectivity of macaque temporal cortex for representations of monkey faces and monkey body parts relative to man-made objects using functional MRI in animals trained to fixate. Two face-selective areas were activated bilaterally in the posterior and anterior superior temporal sulcus exhibiting different degrees of category selectivity. The posterior face area was more extensively activated in the right hemisphere than in the left hemisphere. Immediately adjacent to the face areas, regions were activated bilaterally responding preferentially to body parts. Our findings suggest a category-selective organization for faces and body parts in macaque temporal cortex.
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