自闭症谱系障碍中的情感韵律处理
Emotional prosody processing in autism spectrum disorder.
作者信息
Rosenblau Gabriela, Kliemann Dorit, Dziobek Isabel, Heekeren Hauke R
机构信息
Cluster of Excellence 'Languages of Emotion', Freie Universität Berlin, Berlin 14195, Germany.
Department of Education and Psychology, Freie Universität Berlin, Berlin 14195, Germany.
出版信息
Soc Cogn Affect Neurosci. 2017 Feb 1;12(2):224-239. doi: 10.1093/scan/nsw118.
Individuals with Autism Spectrum Disorder (ASD) are characterized by severe deficits in social communication, whereby the nature of their impairments in emotional prosody processing have yet to be specified. Here, we investigated emotional prosody processing in individuals with ASD and controls with novel, lifelike behavioral and neuroimaging paradigms. Compared to controls, individuals with ASD showed reduced emotional prosody recognition accuracy on a behavioral task. On the neural level, individuals with ASD displayed reduced activity of the STS, insula and amygdala for complex vs basic emotions compared to controls. Moreover, the coupling between the STS and amygdala for complex vs basic emotions was reduced in the ASD group. Finally, groups differed with respect to the relationship between brain activity and behavioral performance. Brain activity during emotional prosody processing was more strongly related to prosody recognition accuracy in ASD participants. In contrast, the coupling between STS and anterior cingulate cortex (ACC) activity predicted behavioral task performance more strongly in the control group. These results provide evidence for aberrant emotional prosody processing of individuals with ASD. They suggest that the differences in the relationship between the neural and behavioral level of individuals with ASD may account for their observed deficits in social communication.
自闭症谱系障碍(ASD)患者的特征是社交沟通严重受损,然而他们在情感韵律加工方面的损伤性质尚未明确。在此,我们采用新颖、逼真的行为和神经成像范式,对ASD患者和对照组的情感韵律加工进行了研究。与对照组相比,ASD患者在一项行为任务中情感韵律识别准确率较低。在神经层面,与对照组相比,ASD患者在处理复杂情绪与基本情绪时,颞上沟(STS)、脑岛和杏仁核的活动有所减少。此外,ASD组中处理复杂情绪与基本情绪时,STS与杏仁核之间的耦合减少。最后,两组在大脑活动与行为表现的关系方面存在差异。在ASD参与者中,情感韵律加工过程中的大脑活动与韵律识别准确率的相关性更强。相比之下,在对照组中,STS与前扣带回皮质(ACC)活动之间的耦合对行为任务表现的预测更强。这些结果为ASD患者异常的情感韵律加工提供了证据。它们表明,ASD患者神经和行为层面关系的差异可能解释了他们在社交沟通中观察到的缺陷。
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