Subregion-specific thalamocortical functional connectivity, executive function, and social behavior in children with autism spectrum disorders.
In kids with autism, stronger right thalamus–default-mode resting connectivity links to poorer social responsiveness through weaker cognitive flexibility and emotional control.
01Research in Context
What this study did
The team scanned children with autism while they rested. They looked at how the right thalamus talks to the default-mode network. They also gave tests for cognitive flexibility and emotional control. Parents filled out the Social Responsiveness Scale.
What they found
Stronger resting-state links between the right thalamus and default-mode network went hand-in-hand with higher social problems. The link was not direct. Poor cognitive flexibility and weak emotional control explained most of the connection.
How this fits with other research
Chee et al. (2017) saw the same big picture: odd brain wires track with poor executive skills in autism. They used fronto-parietal theta waves, while Min used thalamo-DMN resting signals. The story lines up.
Fong et al. (2020) also found that parent-rated executive deficits predict social gaps. Their tool was a checklist, not a brain scan, yet the message matches.
Fernandez-Prieto et al. (2021) showed emotion regulation sits between sensory issues and behavior problems. Min now shows emotion regulation also sits between thalamo-DMN connectivity and social problems. The mediator role of executive control keeps repeating.
Why it matters
You now have a brain-based marker you cannot see in clinic. If a child shows weak flexibility or emotional control on your EF tasks, expect social struggles even if autism severity looks mild. Add self-monitoring and emotion-regulation drills to social-skills groups. Target the skill, not just the label.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →Open your next social-skills session with a quick card-sort switch task to spot flexibility gaps, then insert an emotion-regulation routine before peer practice.
02At a glance
03Original abstract
The thalamus has extensive cortical connections and is an integrative hub for cognitive functions governing social behavior. This study examined (1) associations between thalamocortical resting-state functional connectivity (RSFC) and social behavior in children and (2) how various executive function (EF) subdomains mediate the association between thalamocortical RSFC and social behavior. Children from the autism brain imaging data exchange (ABIDE) initiative with neuroimaging, behavioral, and demographic data were included in our study (age < 14, ASD; n = 207, typically developing; n = 259). Thalamocortical RSFC was examined for associations with social communication and interaction (SCI) scores (SRS; social responsiveness scale) using Spearman's rank-order correlation, first in ASD children and then in typically developing children. This was followed by a more granular analysis at the thalamic subregion level. We then examined the mediating roles of eight EF subdomains in ASD children (n = 139). Right thalamus-default mode network (DMN) RSFC was significantly associated with SCI scores in ASD children (ρ = 0.23, pFDR = 0.012), primarily driven by the medial (ρ = 0.22, pFDR = 0.013), ventral (ρ = 0.17, pFDR = 0.036), and intralaminar (ρ = 0.17, pFDR = 0.036) thalamic subregions. Cognitive flexibility (ACME = 0.13, punc = 0.016) and emotional control (ACME = 0.08, punc = 0.020) significantly mediated the association between right thalamus-DMN RSFC and SCI scores. This study provided novel insights into the association between thalamocortical RSFC and social behavior in ASD children at the thalamic subregion level, providing higher levels of precision in brain-behavior mapping. Cognitive flexibility and emotion regulation were highlighted as potential targets to ameliorate the downstream effects of altered thalamocortical connectivity to improve social outcomes in ASD children.
Autism research : official journal of the International Society for Autism Research, 2025 · doi:10.1002/aur.3280