title: Adrenocortical activity in at-risk and normally developing adolescents: individual differences in salivary cortisol basal levels, diurnal variation, and responses to social challenges.
abstract: The purpose of this study was to examine adrenocortical activity (basal, diurnal variation, and responses to social stressors) in adolescents at risk for psychopathology. Salivary cortisol levels were examined in normally developing and at-risk youth with internalizing and externalizing symptoms ranging from subclinical to clinical levels. Adolescents showed expected patterns of diurnal variation, with high early morning cortisol levels and a pattern of decline throughout the day. Females showed higher midday and late afternoon levels than males, and these patterns interacted with risk status. Internalizing problems sometimes were associated with gradual rather than steep declines in basal cortisol production. Both immediate and delayed cortisol reactivity to a social performance stressor were associated with internalizing symptoms. There was no evidence of relations between externalizing problems and underarousal of the hypothalamic-pituitary-adrenal (HPA) system. These and other results suggest that gender is an important moderating factor linking psychopathology. development, and context with HPA axis functioning in adolescence.
authors.affiliation: Department of Psychology, The Catholic University of America, Washington DC 20064, USA. klimes@cua.edu
authors.forename: B
authors.initials: B
authors.lastname: Klimes-Dougan
authors.forename: P D
authors.initials: PD
authors.lastname: Hastings
authors.forename: D A
authors.initials: DA
authors.lastname: Granger
authors.forename: B A
authors.initials: BA
authors.lastname: Usher
authors.forename: C
authors.initials: C
authors.lastname: Zahn-Waxler
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000502:physiology; D002648:Child; D002940:Circadian Rhythm / Q000502:physiology*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000032:analysis* / Q000378:metabolism*; D007030:Hypothalamo-Hypophyseal System / Q000378:metabolism*; D008297:Male; D001523:Mental Disorders / Q000209:etiology / Q000378:metabolism; D010913:Pituitary-Adrenal System / Q000378:metabolism*; D012307:Risk Factors; D012463:Saliva / Q000737:chemistry*; D012931:Social Environment; D013315:Stress, Psychological / Q000378:metabolism* / Q000523:psychology
chemical_list: D006854:Hydrocortisone