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Psychiatry Res. 2024 Jun 14;339:116040. doi: 10.1016/j.psychres.2024.116040. Online ahead of print.
ABSTRACT
Autism spectrum disorder (ASD) is a neurodevelopmental disorder with a wide range of symptoms that include deficits in social cognition and difficulties with social interactions. Neural oscillations in the EEG gamma band have been proposed as an important candidate neurobiological marker of higher order cognitive processes and social interactions. We investigated resting-state gamma-activity of patients with ASD (n=23) in order to delineate alterations as compared to typically developing (TD) subjects (n=24). EEG absolute power was examined in the gamma (30-100Hz) frequency band. We found significantly reduced spectral power across the entire gamma range in the ASD group. The decrease was most pronounced over the inferior-frontal and temporo-parietal junction areas. We also found a significant decrease in gamma-activity over the dorsolateral prefrontal cortex, especially in the left side. Since these brain areas have been associated with social functioning, the reduced gamma-activity in ASD may represent a cortical dysfunction that could underlie a diminished capacity to interpret socially important information, thereby interfering with social functioning. The alterations we found may lend support for an improved diagnosis. Furthermore, they can lead to focused therapies, by targeting the dysfunctional brain activity to improve social cognitive and interaction abilities that are compromised in ASD.
PMID:38901364 | DOI:10.1016/j.psychres.2024.116040
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Alterations in resting-state gamma-activity is adults with autism spectrum disorder: A High-Density EEG study
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Alterations in resting-state gamma-activity is adults with autism spectrum disorder: A High-Density EEG study
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Alterations in resting-state gamma-activity is adults with autism spectrum disorder: A High-Density EEG study
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