Mother-Child Biobehavioral Synchrony and Its Association With Social Functioning in Autistic School-Aged Children

Area of Science:

• Developmental Psychology
• Autism Spectrum Disorder Research
• Biobehavioral Science

Background:

• Parent-child biobehavioral synchrony is theorized to support social development.
• This relationship has not been previously studied in autistic children.

Purpose of the Study:

• To examine the association between physiological synchrony (respiratory sinus arrhythmia - RSA) and behavioral synchrony with pragmatic language skills and friendship quality in school-aged autistic children.
• To investigate the interplay between RSA synchrony and behavioral synchrony.

Main Methods:

• Studied 40 mother-child dyads involving school-aged autistic children.
• Assessed moment-to-moment RSA synchrony and behavioral synchrony during a collaborative task.
• Measured pragmatic language skills and friendship quality.

Main Results:

• Mothers and autistic children exhibited negative RSA synchrony (one partner's increase corresponded to the other's decrease).
• Behavioral synchrony did not moderate the relationship between mother-child RSA synchrony.
• Negative RSA synchrony was associated with improved pragmatic language skills in dyads with high behavioral synchrony.

Conclusions:

• Dyadic synchrony is complex, with negative RSA synchrony potentially benefiting autistic children's pragmatic language skills when coupled with behavioral synchrony.
• Coordinated mother-child RSA and behavioral synchrony may support social skill development in autistic children.
• Further longitudinal research is needed to confirm these findings.