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Patterns of fMRI activity dissociate overlapping functional brain areas that respond to biological motion.

Abstract：

:Accurate perception of the actions and intentions of other people is essential for successful interactions in a social environment. Several cortical areas that support this process respond selectively in fMRI to static and dynamic displays of human bodies and faces. Here we apply pattern-analysis techniques to arrive at a new understanding of the neural response to biological motion. Functionally defined body-, face-, and motion-selective visual areas all responded significantly to "point-light" human motion. Strikingly, however, only body selectivity was correlated, on a voxel-by-voxel basis, with biological motion selectivity. We conclude that (1) biological motion, through the process of structure-from-motion, engages areas involved in the analysis of the static human form; (2) body-selective regions in posterior fusiform gyrus and posterior inferior temporal sulcus overlap with, but are distinct from, face- and motion-selective regions; (3) the interpretation of region-of-interest findings may be substantially altered when multiple patterns of selectivity are considered.

journal_name

Neuron

journal_title

Neuron

authors

Peelen MV,Wiggett AJ,Downing PE

doi

10.1016/j.neuron.2006.02.004

subject

Has Abstract

pub_date

2006-03-16 00:00:00

pages

815-22

issue

6

eissn

0896-6273

issn

1097-4199

pii

S0896-6273(06)00094-8

journal_volume

49

pub_type

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