nonface clusters in the fusiform face area

Nature Neuroscience – 9, 1177 – 1185 (2006) Published online: 6 August 2006; | doi:10.1038/nn1745Kalanit Grill-Spector et. el.

Higher resolution fMRI shows that FFA has a heterogeneous structure: localized subregions within the FFA highly selective to faces are spatially interdigitated with localized subregions highly selective to different object categories. We found a preponderance of face-selective responses in the FFA, but no difference in selectivity to faces compared to nonfaces. Thus, standard fMRI of the FFA reflects averaging of heterogeneous highly selective neural populations of differing sizes, rather than higher selectivity to faces. These results suggest that visual processing in this region is not exclusive to faces.

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