Age, rank, and personality effects on the cortisol sedation stress response in young chimpanzees
Age, rank, and personality effects on the cortisol sedation stress response in young chimpanzees
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DOI：
10.1016/j.physbeh.2006.06.010
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发表时间：
2006-09-30
影响因子：
2.9
通讯作者：
Hasselschwert, Dana L.
中科院分区：
文献类型：
--
作者：
Anestis, Stephanie F.;Bribiescas, Richard G.;Hasselschwert, Dana L.
灵长类和其他哺乳动物对躯体和心理应激源表现出糖皮质激素反应。物种内和物种间的反应模式和程度各不相同，但很少考虑影响物种内可变性的因素。在这里，我们描述了14只幼年和青春期黑猩猩对盐酸氯胺酮镇静应激的90分钟血清皮质醇反应。我们显示了基线皮质醇和皮质醇峰值时间的年龄差异，年轻个体(4-5岁)比老年个体(8-9岁)表现出更高的基线水平和更早的峰值反应。然而，我们没有发现任何与性别或等级相关的镇静指标：基线皮质醇、皮质醇峰值时间、皮质醇峰值水平或皮质醇较基线的变化。我们还检查了这些镇静压力措施与行为风格得分之间的关系，发现在“醇厚”行为风格成分中得分较高的个体比在该成分中得分较低的个体表现出更大的压力反应。未来的研究应该考虑年龄和个性上的个体差异在皮质醇对压力的反应中的作用。(C)2006 Elsevier Inc.保留所有权利。
Primates and other mammals exhibit a glucocorticoid response to somatic and psychosocial stressors. The pattern and degree of response varies both within and between species, but the factors affecting within-species variability have rarely been considered. Here we describe the 90-min serum cortisol response of 14 juvenile and adolescent chimpanzees to the stress of sedation with ketamine hydrochloride. We show age differences in both baseline cortisol and time of peak cortisol, with younger individuals (ages 4-5 years) showing higher baseline levels and an earlier peak response than older individuals (ages 8-9 years). However, we found no sex or rank-related differences in any of the sedation measures: baseline cortisol, cortisol peak time, peak cortisol level, or cortisol change from baseline. We also examined the relationship between these sedation stress measures and behavioral style score, and found that individuals scoring high in the "mellow" behavioral style component showed a greater stress response than individuals scoring lower in this component. Future studies should consider the role of individual differences in age and personality in the cortisol response to stress. (c) 2006 Elsevier Inc. All rights reserved.