Physiological and behavioral reactivity to stress in thunderstorm-phobic dogs and their caregivers
Physiological and behavioral reactivity to stress in thunderstorm-phobic dogs and their caregivers
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DOI：
10.1016/j.applanim.2005.04.009
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发表时间：
2005-12-01
影响因子：
2.3
通讯作者：
Granger, DA
中科院分区：
文献类型：
--
作者：
Dreschel, NA;Granger, DA
这项研究探讨了下丘脑-垂体-肾上腺（HPA）轴激活对雷暴焦虑狗及其主人的压力、关系质量和行为之间的相互作用。使用受控重复测量设计，我们通过实验操纵个体暴露于他们高度恐惧的压力源，并评估他们自己和照顾者的生理和行为反应。在暴露于模拟雷暴之前、20 分钟和 40 分钟后，从 19 名狗主人的唾液样本中采集，随后进行皮质醇检测。为了应对挑战，狗表现出典型的恐惧迹象（即踱步、哀鸣、躲藏），它们的皮质醇水平增加了 207%，并且这些水平在 40 分钟内没有恢复到基线。主人的行为或狗与主人的关系质量对狗的 HPA 或行为反应没有影响。然而，家中其他狗的存在与狗的 HPA 反应较不明显的反应性和较快的恢复有关。平均而言，看护者的皮质醇水平没有增加。主人的情绪（例如抑郁、愤怒）会影响他们对狗的行为反应。这些研究结果首次研究了焦虑的犬类对家庭环境中的压力的 HPA 反应，以及问题犬类行为对其照顾者的生理和行为影响。 (c) 2005 Elsevier B.V. 保留所有权利。
This study addresses interactions between hypothalamic-pituitary-adrenal (HPA) axis activation in response to stress, relationship quality, and behavior in thunderstorm-anxious dogs and their owners. Using a controlled repeated-measures design, we experimentally manipulated exposure of individuals to a stressor they were highly fearful of, and assessed both their own and their caregivers' physiological and behavioral responsiveness. Saliva samples were collected from 19 dog-owner dyads before, 20 and 40 min after exposure to a simulated thunderstorm and were later assayed for cortisol. In response to the challenge, the dogs exhibited classic signs of fear (i.e., pacing, whining, hiding), their cortisol levels increased 207%, and these levels did not return to baseline within 40 min. There were no effects of the owners' behavior or the quality of the dog-owner relationship on the dogs' HPA or behavioral reactivity. However, the presence of other dogs in the household was linked to less pronounced reactivity and more rapid recovery of the dog's HPA response. On average, the cortisol levels of the caregivers did not increase. Owners' mood (e.g. depression, anger) affected their behavioral response towards their dogs. These findings are among the first to study the HPA responsiveness of anxious canines in response to stress in a home setting, and the physiological and behavioral effects of problem canine behavior on their caregivers. (c) 2005 Elsevier B.V. All rights reserved.