Hippocampal damage abolishes the cortisol response to psychosocial stress in humans.

Hippocampal damage abolishes the cortisol response to psychosocial stress in humans.
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DOI:
10.1016/j.yhbeh.2009.02.011
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发表时间:
2009-06
影响因子:
3.5
通讯作者:
Kirschbaum C
Kirschbaum C
中科院分区:
医学3区
文献类型:
--
作者:
Buchanan TW;Tranel D;Kirschbaum C

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海马体(HC)对于学习和记忆是必需的,但它也在其他行为中发挥着作用,例如与压力和焦虑相关的行为。为了支持后一种观点,我们在此表明​​双侧 HC 损伤消除了皮质醇对心理社会压力的反应。我们收集了 7 名双侧 HC 损伤参与者、12 名 HC 以外损伤参与者以及 28 名与 HC 参与者年龄和性别相匹配的健康正常对照参与者的唾液皮质醇、心率和对特里尔社会压力测试 (TSST) 的情感反应。 HC 参与者表现出应激前皮质醇升高,但对 TSST 没有皮质醇反应。 HC 组的心率和情感反应与对照组相似。 HC 之外脑损伤的参与者表现出与健康对照组相当的压力反应。这些发现支持这样的观点,即人类 HC 的功能超出了学习和记忆的范围,并表明 HC 对于产生皮质醇对心理社会压力的反应是必要的。
The hippocampus (HC) is necessary for learning and memory, but it also plays a role in other behaviors such as those related to stress and anxiety. In support of the latter idea, we show here that bilateral HC damage abolishes the cortisol response to psychosocial stress. We collected salivary cortisol, heart rate, and affective responses to the Trier Social Stress Test (TSST) from 7 participants with bilateral HC lesions, 12 participants with damage outside the HC, and 28 healthy normal comparison participants matched to the HC participants on age and sex. HC participants showed elevated pre-stress cortisol, but no cortisol response to the TSST. Heart rate and affective responses in the HC group were similar to those of the comparison groups. Participants with brain damage outside the HC showed stress responses that were comparable to those of the healthy comparison group. These findings support the idea that the functions of the human HC extend beyond learning and memory, and suggest that the HC is necessary for producing the cortisol response to psychosocial stress.
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