Autistic traits modulate the activity of the ventromedial prefrontal cortex in response to female faces. (August 2018)

• Record Type: Journal Article
• Authors: Murakami, Yui; Sakai, Shinya; Takeda, Kenta; Sawamura, Daisuke; Yoshida, Kazuki; Hirose, Takamichi; Ikeda, Chisa; Mani, Hiroki; Yamamoto, Toru; Ito, Ayahito
• Is Part Of: Neuroscience research. Volume 133(2018)
• Page Start: 28
• Page End: 37
• Publication Date: 2018-08
• Subjects: Autistic traits -- Face -- Value -- Ventromedial prefrontal cortex -- Ventral striatum; Neurosciences -- Research -- Periodicals; Neurosciences -- Research -- Japan -- Periodicals; Neurology -- Periodicals; Neurosciences -- Periodicals; Neurosciences -- Recherche -- Périodiques; Neurosciences -- Recherche -- Japon -- Périodiques; Neurosciences -- Research; Japan; Periodicals; 612.8
• DOI: 10.1016/j.neures.2017.11.003
• Languages: English
• ISSNs: 0168-0102

Abstract

Highlights: We investigated whether autistic traits modulate the function in the vmPFC and VS. We found a dissociable modulatory effect of autistic traits on the vmPFC and VS. Autistic traits selectively modulate activity in the vmPFC but not in the VS. Abstract: Previous findings have revealed abnormal visual attention or processing of faces among individuals with autism spectrum condition (ASC). However, little attention has been paid to the relationship between autistic traits and neural mechanisms associated with representing facial values. Using fMRI, we investigated the patterns of brain activity in the vmPFC and VS in response to faces of elderly males, elderly females, young males, and young females. During fMRI, subjects with a relatively high autism quotient (high group) and those with a relatively low autism quotient (low group) were presented with a face and asked to rate its pleasantness. After fMRI, the subjects were presented with pairs of faces and asked to select the face that they preferred. Our results indicate a dissociable modulatory effect of autistic traits on the vmPFC and VS: The vmPFC activity in the low group was more sensitive to age differences in female faces compared to that in the high group, whereas VS activity did not show differences between groups. These results suggest that, in the BVS, autistic traits selectively modulate the vmPFC activity associated with facial value representation.