FMRI evidence that hyper-caricatured faces activate object-selective cortex.

ABSTRACT: Many brain imaging studies have looked at the cortical responses to object categories and faces. A popular way to manipulate face stimuli is by using a "face space," a high dimensional representation of individual face images, with the average face located at the origin. However, how the brain responds to faces that deviate substantially from average has not been much explored. Increasing the distance from the average (leading to increased caricaturing) could increase neural responses in face-selective regions, an idea supported by results from non-human primates. Here, we used a face space based on principal component analysis (PCA) to generate faces ranging from average to heavily caricatured. Using functional magnetic resonance imaging (fMRI), we first independently defined face-, objec

SUBMITTER: Elson R 

PROVIDER: S-EPMC9878608 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature