Abstract
The dual systems model is a prominent framework for understanding how differential cognitive development of impulse control and sensation-seeking predicts peak involvement in risky behaviors during adolescence. This study examines heterogeneity in the development of dual systems constructs and examines post-traumatic stress disorder as a driver of differential development. This study utilized data from all 11 waves of the Pathways to Desistance study. Group-based trajectory modeling was used to identify heterogeneity in developmental patterns of impulse control and sensation-seeking. Multinomial logistic regression was used to assess the relevance of post-traumatic stress disorder for predicting differential development. Results indicated that three-group models provided best fit to the data for both constructs. All groups in both models were highly stable and demonstrated rank stability. Meeting criteria for a lifetime diagnosis of post-traumatic stress disorder predicted patterns of stable and high sensation-seeking, but did not predict development of impulse control. Findings suggest that individuals suffering from post-traumatic stress disorder should be targeted with programming to diminish sensation-seeking; potentially through criminal justice system intervention.
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