Journal
NATURE NEUROSCIENCE
Volume 9, Issue 10, Pages 1337-1343Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/nn1777
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Funding
- NICHD NIH HHS [R01 HD041581] Funding Source: Medline
- NINDS NIH HHS [R01 NS41925, R01 NS36722] Funding Source: Medline
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Visually guided eating, biting and kissing, and avoiding objects moving toward the face and toward which the face moves require prompt, coordinated processing of spatial visual and somatosensory information in order to protect the face and the brain. Single-cell recordings in parietal cortex have identified multisensory neurons with spatially restricted, aligned visual and somatosensory receptive fields, but so far, there has been no evidence for a topographic map in this area. Here we mapped the organization of a multisensory parietal face area in humans by acquiring functional magnetic resonance images while varying the polar angle of facial air puffs and close-up visual stimuli. We found aligned maps of tactile and near-face visual stimuli at the highest level of human association cortex-namely, in the superior part of the postcentral sulcus. We show that this area may code the location of visual stimuli with respect to the face, not with respect to the retina.
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