Out of Sync: Parent-Child Behavioral Synchrony in Conduct Problem Subgroups.

Authors

Silvana Kaouar, Georgette E Fleming, Bryan Neo, Campbell McDonogh, Lucy Koh, Amanda B Chan, Lily Chen, Sasha Forrest, David J Hawes, Valsamma Eapen, Eva R Kimonis

Published in

Research on child and adolescent psychopathology. Volume 54. Issue 4. Jul 30, 2026. Epub Jul 30, 2026.

Abstract

Parent-child behavioral synchrony-the dyad's moment-to-moment coordination of behavior and emotion-supports children's socioemotional development, yet most evidence comes from cross-sectional community samples using global indices, limiting clinical insight for heterogeneous conduct problems (CP). This prospective study tested baseline differences and treatment-related change in discrete synchrony facets among clinic-referred children with CP, comparing CP-only, primary callous-unemotional (CU; CU without internalizing problems), and secondary CU (CU with internalizing problems) variants. Mother-child and father-child dyads of N = 234 children aged 2-7 years (74% boys) completed standardized play tasks that were coded into four Mutually Responsive Orientation dimensions (Coordinated Routines, Mutual Cooperation, Harmonious Communication, Emotional Ambience); parents completed questionnaires assessing child CP, CU traits, and internalizing symptoms. A subsample (n = 142) received parent training and was re-assessed post-treatment and at three-month follow-up. At baseline, mother-child Harmonious Communication and Emotional Ambience were significantly lower in secondary CU than in primary CU and CP-only groups. Parent training significantly improved synchrony across dyads from baseline to post-treatment, with maintenance for mothers. However, despite overall gains, synchrony remained lower for secondary CU than primary CU variants at follow-up (mothers), and father-child Harmonious Communication deteriorated from post-treatment to follow-up in secondary CU relative to improvement in primary CU. Findings indicate variant-specific synchrony deficits, especially affective facets, in secondary CU and attenuated normalization following parent training, refining etiological accounts and highlighting the need to tailor synchrony-focused treatment targets for CP subgroups.

PMID:
42527812
Bibliographic data and abstract were imported from PubMed on 30 Jul 2026.

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