Patterns of fMRI Activity Dissociate Overlapping Functional Brain Areas that Respond to Biological Motion
| Autor: | Paul E. Downing, Alison J. Wiggett, Marius V. Peelen |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Adult
media_common.quotation_subject Neuroscience(all) Statistics as Topic Motion Perception Carbamide Peroxide Brain mapping Motion (physics) Functional Laterality Extrastriate body area Motion Face perception Perception Image Processing Computer-Assisted Humans Urea media_common Human Body Communication Brain Mapping Fusiform gyrus business.industry General Neuroscience Brain Inferior temporal sulcus Magnetic Resonance Imaging Peroxides Drug Combinations Psychology business SYSNEURO Neuroscience Photic Stimulation Biological motion |
| Zdroj: | Neuron. 49(6):815-822 |
| ISSN: | 0896-6273 |
| DOI: | 10.1016/j.neuron.2006.02.004 |
| Popis: | SummaryAccurate 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. |
| Databáze: | OpenAIRE |
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