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.
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Titolo: | Patterns of fMRI activity dissociate overlapping functional brain areas that respond to biological motion. | |
Autori: | Peelen, Marius Vincent; A. J., Wiggett; P. E., Downing | |
Autori Unitn: | ||
Titolo del periodico: | NEURON | |
Anno di pubblicazione: | 2006 | |
Codice identificativo Pubmed: | 16543130 | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.neuron.2006.02.004 | |
Handle: | http://hdl.handle.net/11572/91124 | |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |