Abstract

AbstractAimAlthough a previous functional magnetic resonance imaging study showed that the fusiform and parahippocampal gyri respond differentially to faces of the same versus different races, it is not clear whether the cortical regions are involved in perception of race. We examined whether two brain‐damaged patients with bilateral fusiform and parahippocampal lesions were able to perceive race. We also examined whether perception of race depended on perception of facial morphology, such as convex and concave surfaces.MethodsOne patient (patient S) had a focal lesion in the fusiform and parahippocampal gyri, and showed no signs of prosopagnosia. The other patient (patient O) had more extensive lesions and did show prosopagnosia. The patients and nine normal controls participated in a psychophysical race classification task using grayscale pictures and luminance‐reversed pictures.ResultsIn patient S, whose lesion was limited to the fusiform and parahippocampal gyri, the perception of race was selectively impaired. In patient O, who had more extensive lesions, race perception was also impaired. Furthermore, their race perception was especially impaired when the facial images were presented in reversed luminance.ConclusionThe present study suggests that the fusiform and parahippocampal gyri are involved in perception of race and that perception of facial surface is involved in distinguishing between races.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.