Abstract

Adolescence is a vulnerable period in terms of the onset of anxiety disorders, and dyadic parent-adolescent interactions may play a key role in either increasing or reducing the risk of psychopathologies. This study examines the presence of physiological synchrony (specifically, linkage in interbeat interval series) and non-verbal synchrony in positive and negative interactions between adolescents (aged 13-16) and their fathers. Non-verbal synchrony was quantified through the coordination of the interactants' body movements, using an automated video-analysis algorithm (motion energy analysis). Participants were made up of 53 parent-adolescent dyads, the latter at either low (n=28) or high (n=25) risk of anxiety. Adolescents at low risk of anxiety displayed statistically significant levels of non-verbal synchrony with their fathers during positive interactions. Non-verbal synchrony was not found in the father-adolescent dyads featuring adolescents at high risk of anxiety. Physiological synchrony was not significantly present above chance level in either of the groups of adolescents. Overall, the results suggest that adolescents at high risk of anxiety may have difficulties in managing non-distressing interactions with their fathers. The results also suggest that physiological synchrony is not a straightforward phenomenon.

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