Journal
CLINICAL CHILD AND FAMILY PSYCHOLOGY REVIEW
Volume 24, Issue 1, Pages 65-91Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10567-020-00329-x
Keywords
Children; Adolescents; Callous-unemotional traits; Psychopathy; Maltreatment
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This systematic review synthesizes the current literature on primary and secondary variants of CU and psychopathy among youth, examining constructs, study population characteristics, data analytic techniques, and associations with relevant indices. Findings support the distinction between primary and secondary variants in youth, highlighting unique clinical correlates. Recommendations are provided for future research in this area.
Two variants of callous-unemotional (CU) traits and psychopathy have been proposed, referred to asprimaryandsecondary. Whereas primary variants are thought to be underpinned by insufficient arousal to emotional cues, secondary variants are thought to develop as a coping mechanism in response to trauma exposure. Compared with adult samples, research on primary and secondary variants in children and adolescents under the age of 18 has only emerged in the past decade, and there is ongoing debate with regards to the identification, defining characteristics, and distinct correlates of these variants. The present systematic review synthesizes the current literature on primary and secondary variants in relation to: (1) constructs used to distinguish and define primary and secondary variants; (2) study population characteristics; (3) data analytic techniques to differentiate variants; and (4) differential associations with theoretically relevant indices related to emotional processing, maltreatment, biomarkers, and behavioral outcomes (e.g., substance use, aggression). This is the first systematic review to examine the growing literature on primary and secondary CU and psychopathy variants among youth. Findings support the distinction between youth with primary versus secondary variants and demonstrate that this distinction is related to unique clinical correlates. Recommendations are made for future research in the field.
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