AI Article Synopsis
- - The study reviews how resting-state arousal differs in autistic individuals, affecting their ability to engage with their environment and develop attention and social skills.
- - Researchers analyzed 51 studies on autonomic arousal (like heart rate and pupil response) between neurotypical and autistic groups, finding that about 60.8% indicated significant differences.
- - While many autistic individuals showed signs of hyperarousal, hypo-arousal and autonomic dysregulation were also noted, emphasizing that the experimental context influences results, leading to recommendations for future research approaches.
Article Abstract
Background: Theories of differences in resting-state arousal in autistic individuals are influential. Differences in arousal during resting-state would impact engagement and adaptation to the environment, having a cascading effect on development of attentional and social skills.
Objectives: We systematically evaluated the evidence for differences in measures of autonomic arousal (heart rate, pupillometry or electrodermal activity) during resting-state in autistic individuals; to understand whether certain contextual or methodological factors impact reports of such differences.
Data Sources: We searched PsycInfo, MEDLINE and EMBASE databases for papers published until 16th May 2019. Of 1207 titles initially identified, 60 met inclusion criteria.
Results And Conclusions: Of the 51 studies that investigated group differences between neurotypical and autistic participants, 60.8 % found evidence of group differences. While findings of hyperarousal were more common, particularly using indices of parasympathetic function, findings of hypo-arousal and autonomic dysregulation were also consistently present. Importantly, experimental context played a role in revealing such differences. The evidence is discussed with regard to important methodological factors and implications for future research are described.
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| http://dx.doi.org/10.1016/j.neubiorev.2021.02.041 | DOI Listing |
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