Open AccessAttribution of emotions to body postures: An independent component analysis study of functional connectivity in autism
Author(s) -
Libero Lauren E.,
Stevens Carl E.,
Kana Rajesh K.
Publication year - 2014
Publication title -
human brain mapping
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.005
H-Index - 191
eISSN - 1097-0193
pISSN - 1065-9471
DOI - 10.1002/hbm.22544
Subject(s) - psychology , autism , cognitive psychology , superior parietal lobule , premotor cortex , inferior parietal lobule , autism spectrum disorder , functional magnetic resonance imaging , prefrontal cortex , context (archaeology) , supplementary motor area , fusiform gyrus , neuroscience , cognition , developmental psychology , medicine , paleontology , dorsum , biology , anatomy
Abstract The ability to interpret others' body language is a vital skill that helps us infer their thoughts and emotions. However, individuals with autism spectrum disorder (ASD) have been found to have difficulty in understanding the meaning of people's body language, perhaps leading to an overarching deficit in processing emotions. The current fMRI study investigates the functional connectivity underlying emotion and action judgment in the context of processing body language in high‐functioning adolescents and young adults with autism, using an independent components analysis (ICA) of the fMRI time series. While there were no reliable group differences in brain activity, the ICA revealed significant involvement of occipital and parietal regions in processing body actions; and inferior frontal gyrus, superior medial prefrontal cortex, and occipital cortex in body expressions of emotions. In a between‐group analysis, participants with autism, relative to typical controls, demonstrated significantly reduced temporal coherence in left ventral premotor cortex and right superior parietal lobule while processing emotions. Participants with ASD, on the other hand, showed increased temporal coherence in left fusiform gyrus while inferring emotions from body postures. Finally, a positive predictive relationship was found between empathizing ability and the brain areas underlying emotion processing in ASD participants. These results underscore the differential role of frontal and parietal brain regions in processing emotional body language in autism. Hum Brain Mapp 35:5204–5218, 2014 . © 2014 Wiley Periodicals, Inc .