Shoal Gavin D, Giancola Peter R, Kirillova Galina P
Department of Psychiatry, University of Kentucky, Lexington, KY 40506-0044, USA.
J Am Acad Child Adolesc Psychiatry. 2003 Sep;42(9):1101-7. doi: 10.1097/01.CHI.0000070246.24125.6D.
The present investigation tested the hypothesis that low resting salivary cortisol concentration in preadolescent boys would be associated with aggressive behavior later in adolescence. Second, it tested whether personality traits would mediate this relation.
Resting salivary cortisol concentrations from 314 boys (10-12 years of age) were assayed. When the boys reached 15 to 17 years of age these concentrations were analyzed in the context of personality traits, measured with the Multidimensional Personality Questionnaire, and aggressive behavior, measured with the Youth Self-Report inventory.
Low cortisol in preadolescence was associated with low harm avoidance, low self-control, and more aggressive behavior 5 years later, during middle adolescence. Cortisol was not related to negative emotionality or any of its factors (including trait aggression). Low self-control was identified as the primary personality mediator of the relation between low cortisol and later aggressive behavior.
In adolescent boys, low resting cortisol concentrations appear predictive of clinically important personality factors. Increased aggressive behavior in adolescents with low resting cortisol may be more strongly associated with lack of self-control than with a specifically "aggressive personality."
本研究检验了以下假设，即青春期前男孩静息唾液皮质醇浓度较低与青春期后期的攻击性行为有关。其次，研究检验了人格特质是否会介导这种关系。
对314名男孩（10 - 12岁）的静息唾液皮质醇浓度进行了测定。当这些男孩达到15至17岁时，结合使用多维人格问卷测量的人格特质和使用青少年自我报告量表测量的攻击性行为来分析这些浓度。
青春期前皮质醇水平较低与低伤害回避、低自我控制以及5年后青春期中期更具攻击性行为有关。皮质醇与消极情绪或其任何因素（包括特质攻击性）均无关联。低自我控制被确定为低皮质醇与后期攻击性行为之间关系的主要人格中介因素。
在青少年男性中，静息皮质醇浓度较低似乎可预测具有临床意义的人格因素。静息皮质醇水平低的青少年攻击性行为增加，可能与其缺乏自我控制的关联比与特定的“攻击型人格”更强。
