Department of Psychology, John Jay College of Criminal Justice, 445 West 59th Street, New York, NY 10019, USA.
Biol Psychol. 2011 Sep;88(1):57-64. doi: 10.1016/j.biopsycho.2011.06.008. Epub 2011 Jul 21.
Recent studies have revealed evidence for interactions between autonomic nervous system (ANS) activity, indexed by saliva alpha amylase (sAA), and hypothalamic-pituitary-adrenocortical activity, in predicting psychological functioning. The present study extends this work by examining individual differences in sAA and cortisol stress reactivity in relation to behavioral and emotional adjustment in youth. Participants were 56 healthy children (age 7-16). sAA, cortisol, and other physiological and affective responses were measured before, during, and after stressor tasks (either performance or peer rejection). Basal and stress responsive sAA and cortisol as well as their interactions were assessed in relation to externalizing and internalizing behaviors and trait anxiety. sAA was positively related to anxiety, while sAA reactivity moderated associations between cortisol reactivity and problem behavior. Results highlight the importance of measuring multiple physiological systems to elucidate mechanisms underlying behavioral and emotional dysregulation.
最近的研究揭示了自主神经系统 (ANS) 活动与下丘脑-垂体-肾上腺皮质活动之间相互作用的证据，这些活动通过唾液 α-淀粉酶 (sAA) 来衡量，可预测心理功能。本研究通过检查 sAA 和皮质醇应激反应的个体差异与青少年的行为和情绪适应之间的关系，扩展了这项工作。参与者为 56 名健康儿童（年龄 7-16 岁）。在压力任务（表现或同伴拒绝）之前、期间和之后测量 sAA、皮质醇和其他生理和情感反应。评估基础和应激反应 sAA 和皮质醇及其相互作用与外化和内化行为以及特质焦虑的关系。sAA 与焦虑呈正相关，而 sAA 反应性调节了皮质醇反应性与问题行为之间的关联。结果强调了测量多个生理系统以阐明行为和情绪失调的机制的重要性。
