A neuronal social trait space for first impressions in the human amygdala and hippocampus.
Mol Psychiatry
; 27(8): 3501-3509, 2022 08.
Article
en En
| MEDLINE
| ID: mdl-35672377
ABSTRACT
People instantaneously evaluate faces with significant agreement on evaluations of social traits. However, the neural basis for such rapid spontaneous face evaluation remains largely unknown. Here, we recorded from 490 neurons in the human amygdala and hippocampus and found that the neuronal activity was associated with the geometry of a social trait space. We further investigated the temporal evolution and modulation on the social trait representation, and we employed encoding and decoding models to reveal the critical social traits for the trait space. We also recorded from another 938 neurons and replicated our findings using different social traits. Together, our results suggest that there exists a neuronal population code for a comprehensive social trait space in the human amygdala and hippocampus that underlies spontaneous first impressions. Changes in such neuronal social trait space may have implications for the abnormal processing of social information observed in some neurological and psychiatric disorders.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Hipocampo
/
Amígdala del Cerebelo
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Mol Psychiatry
Asunto de la revista:
BIOLOGIA MOLECULAR
/
PSIQUIATRIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Estados Unidos