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".
After six pulse-stimulation sessions, ASD teens with bigger brain-network boosts also scored better on cognitive tests—but the link is only a clue, not proof.
01Research in Context
What this study did
Hsu et al. (2025) looked at teens with autism who joined a safety trial of transcranial pulse stimulation.
After six short TPS sessions the team took EEG scans and ran short cognitive tests.
They asked: do kids whose brain networks show stronger links also score higher on thinking tasks?
What they found
Teens whose targeted brain networks grew more connected also posted better cognitive scores.
The link was only a correlation; the study cannot say TPS caused the gains.
How this fits with other research
Dickinson et al. (2019) saw the opposite pattern in babies. Infants with tuberous sclerosis who later got autism showed weaker alpha coherence, not stronger.
The clash makes sense: the babies were 12-24 months old, had TSC, and were measured at rest. Liang’s teens were older, had idiopathic ASD, and were scanned after a brain stimulation course.
M Shama et al. (2025) used a different EEG trick—trial-to-trial variability—and also found a signal that tracks autism. Together the papers show EEG can flag autism risk, track change, or predict skill, depending on how you slice the data.
Why it matters
If you work with teens who receive TPS, grab a quick EEG afterward. Stronger network coherence may hint at cognitive gains, letting you celebrate early and adjust teaching faster. Keep the correlation in mind: high connectivity is a hopeful sign, not proof the device worked.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →After the next TPS session, record a five-minute EEG and note coherence strength; if it looks high, move quickly to tougher cognitive tasks while the teen appears primed.
02At a glance
03Original abstract
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.
Autism research : official journal of the International Society for Autism Research, 2025 · doi:10.1002/aur.70093