title: Beyond physiological hypoarousal: the role of life stress and callous-unemotional traits in incarcerated adolescent males.
abstract: The development of antisocial behavior in youth has been examined with neurobiological theories that suggest that adolescents who are less responsive to their environments are less likely to develop empathy in the absence of extant physiological arousal. However, little attention is paid to these individuals' social context. Individuals with adverse early experiences can also exhibit attenuated physiological arousal. The current investigation examines whether psychopathic symptoms or life stress exposure is associated with cortisol and its diurnal rhythm within 50 incarcerated adolescent boys (14-18years old). Ten saliva cortisol samples were collected 1-2weeks after admission to a maximum-security juvenile facility. Hierarchical Linear Modeling distinguished waking cortisol levels, the awakening response (CAR) and the diurnal rhythm. Multiple interviews and self-report measures of CU traits and stressor exposure were collected. Boys with higher levels of CU traits or greater life stress exposure had flat diurnal rhythms and a steeper awakening response in analyses with lifetime stress exposure specifically. Nonetheless, boys who were elevated on both CU traits and prior stress exposure had steeper diurnal rhythms. These results extend neurobiological theories of cortisol and illustrate that boys with the combination of severe stress with CU traits have a unique physiological profile.
authors.affiliation: Iowa State University, USA.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Gostisha
authors.affiliation: Georgia Health Sciences University, USA.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Vitacco
authors.affiliation: Iowa State University, USA.
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Dismukes
authors.affiliation: Rosalind Franklin University, USA.
authors.forename: Chelsea
authors.initials: C
authors.lastname: Brieman
authors.affiliation: University of Chicago-School of Social Work, USA.
authors.forename: Jenna
authors.initials: J
authors.lastname: Merz
authors.affiliation: Iowa State University, USA. Electronic address: birdie.shirtcliff@uno.edu.
authors.forename: Elizabeth A
authors.initials: EA
authors.lastname: Shirtcliff
mesh_terms: D000293:Adolescent; D000987:Antisocial Personality Disorder / Q000523:psychology; D001143:Arousal / Q000502:physiology*; D002649:Child Abuse / Q000523:psychology; D004644:Emotions / Q000502:physiology*; D004645:Empathy / Q000502:physiology; D006801:Humans; D006854:Hydrocortisone / Q000378:metabolism; D007398:Interpersonal Relations; D008297:Male; D009483:Neuropsychological Tests; D011329:Prisoners / Q000523:psychology*; D012463:Saliva / Q000378:metabolism; D012890:Sleep / Q000502:physiology; D013315:Stress, Psychological / Q000523:psychology*
chemical_list: D006854:Hydrocortisone
keywords: Adolescence; Context; Cortisol; Incarceration; Stress
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