Associations Between Brain Network Connectivity and Cognitive Measures in Autism Spectrum Disorder: A Post Hoc Analysis of a Parent Study "Evaluating the Safety and Efficacy of Transcranial Pulse Stimulation on Autism Spectrum Disorder".

Researchers looked at brain scans and thinking tests in teenagers with autism who received a brain stimulation treatment called TPS. They found that when certain brain connections became stronger after treatment, the teens' thinking skills improved. This helps us understand how the brain might work differently in autism and how treatments could help, though more research is needed.

This post hoc analysis examined brain network connectivity changes and cognitive performance in young adolescents (12-17 years) with autism spectrum disorder following transcranial pulse stimulation (TPS) intervention. The study analyzed data from a parent randomized controlled trial investigating TPS safety and efficacy. Results showed associations between increased connectivity in specific brain networks and improvements in cognitive measures after six TPS sessions. The findings suggest potential neural mechanisms underlying cognitive improvements in ASD, though the authors emphasize that causality cannot be established from these correlational data.

TPS is described as a non-invasive, evidence-based brain stimulation technique used for neurodegenerative and neuropsychiatric conditions.

Results provide preliminary evidence for potential neural mechanisms of cognitive improvement in autism following TPS intervention. However, the correlational nature of findings and lack of causal evidence limit immediate clinical applications. Further research is needed to establish efficacy and optimal protocols.

This was a post hoc analysis, limiting the strength of conclusions. Sample size not reported. Authors explicitly state causality cannot be inferred from the associations found. The study only examined short-term effects after six sessions.

This study presents a post hoc analysis of our parent study "Evaluating the Safety and Efficacy of Transcranial Pulse Stimulation on Autism Spectrum Disorder" study which was a double-blind, sham-controlled, randomized controlled trial. In this study, we examined associations between changes in brain network connectivity and cognitive performance in young adolescents (12-17 years) with autism spectrum disorder (ASD) following the administration of transcranial pulse stimulation (TPS) which is considered non-invasive, evidenced-based brain stimulation for neurodegenerative disorders and neuropsychiatric disorders. Our findings indicate that increased connectivity in specific brain networks is associated with improvements in cognitive measures, suggesting that connectivity changes may underpin cognitive changes observed after six TPS intervention. These results highlight potential neural mechanisms underlying cognitive improvements in ASD, although causality cannot be inferred from these associations.

Trial Registration: ClinicalTrials.gov identifier: NCT05408793.