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The role of the amygdala in naturalistic mentalising in typical development and in autism spectrum disorder
Journal article   Open access   Peer reviewed

The role of the amygdala in naturalistic mentalising in typical development and in autism spectrum disorder

Gabriela Rosenblau, Dorit Kliemann, Benjamin Lemme, Henrik Walter, Hauke R Heekeren and Isabel Dziobek
British journal of psychiatry, Vol.208(6), pp.556-564
06/2016
DOI: 10.1192/bjp.bp.114.159269
PMID: 26585095
url
https://doi.org/10.1192/bjp.bp.114.159269View
Published (Version of record) Open Access

Abstract

The substantial discrepancy between mentalising in experimental settings v. real-life social interactions hinders the understanding of the neural basis of real-life social cognition and of social impairments in psychiatric disorders. To determine the neural mechanisms underlying naturalistic mentalising in individuals with and without autism spectrum disorder. We investigated mentalising with a new video-based functional magnetic resonance imaging task in 20 individuals with autism spectrum disorder and 22 matched healthy controls. Naturalistic mentalising implicated regions of the traditional mentalising network (medial prefrontal cortex, temporoparietal junction), and additionally the insula and amygdala. Moreover, amygdala activity predicted implicit mentalising performance on an independent behavioural task. Compared with controls, the autism spectrum disorder group did not show differences in neural activity within classical mentalising regions. They did, however, show reduced amygdala activity and a reduced correlation between amygdala activity and mentalising accuracy on the behavioural task, compared with controls. These findings highlight the crucial role of the amygdala in making accurate implicit mental state inferences in typical development and in the social cognitive impairments of individuals with autism spectrum disorder.
Adult Amygdala - physiopathology Autism Spectrum Disorder - physiopathology Cerebral Cortex - physiopathology Female Humans Magnetic Resonance Imaging - methods Male Middle Aged Social Perception Theory of Mind - physiology Young Adult

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