Trial reportPsychiatry and clinical neurosciences2026
Different effects of social cognitive skills training in schizophrenia and autism spectrum disorder: A rater-blinded, multicenter, randomized controlled trial.
Trial report in Psychiatry and clinical neurosciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
Funding
Abstract
aimSchizophrenia (SCZ) and autism spectrum disorder (ASD) are both characterized by social cognitive impairments that strongly predict poor functional outcomes. However, evidence-based social cognitive interventions have been developed only for SCZ. This study investigated the feasibility and efficacy of social cognitive skills training (SCST), focusing on both common and different effects on SCZ and ASD.
methodsForty-seven adults with SCZ and/or ASD were randomly assigned to SCST (n = 24) or a treatment-as-usual control (CON; n = 23). The Japanese version of SCST developed for this study comprised weekly 2-h group sessions over 6 weeks and targeted two social cognition levels: lower-level emotional processing and higher-level theory of mind. Blinded raters assessed social cognition, neurocognition, clinical symptoms, and functioning at baseline, post-intervention, and 6-week follow-up.
resultsSCST significantly improved facial emotion perception across diagnoses and demonstrated a trend-level ASD-specific improvement in theory of mind. These effects were maintained and generalized to improved global functioning only for ASD at follow-up. High attendance and positive participant feedback in both groups indicated the intervention's feasibility.
conclusionThis study provides initial evidence supporting the feasibility and efficacy of social cognitive interventions as a transdiagnostic approach for SCZ and ASD and is the first to show functional benefits in adults with ASD. The findings highlight both shared and disorder-specific mechanisms of social cognitive impairments and support the development of hybrid interventions that integrate transdiagnostic core components with tailored, diagnosis-sensitive modules for diverse psychiatric populations. CLINICAL
trial registrationThe study protocol was preregistered on the University Hospital Medical Information Network Clinical Trials Registry (UMIN000041619; https://center6.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=R000047105; September 7, 2020).
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