A face-specific response was localized to the base of the fusiform g., and to the sulcus between the fusiform and inferior temporal gyri. The area activated is comparable to that inferred from iEEG studies. In some subjects, a band of cortex with weak retinotopy of opposite sign from V4v was interposed between V4v and the fusiform face area. The fusiform activations were in all cases bilateral, although often more extensive in the right hemisphere. A response specific to objects seemed to be more medial, in the sulcus between the fusiform and lingual gyri.
Sulcal cortex is coded as a darker gray than gyral cortex.
The right and left hemispheres of two typical subjects are shown. In all subjects, the highest level of face-selective activation was in the base of the posterior fusiform g. or in the occipitotemporal sulcus separating it from the inferior temporal gyrus. This activation was bilateral in all except one subject. Area MT did not respond differentially to any stimulus category. Activation was also seen in non-retintotopic areas of the ventral visual stream.