Abercrombie Heather C, Kalin Ned H, Thurow Marchell E, Rosenkranz Melissa A, Davidson Richard J
Department of Psychology, University of Wisconsin-Madison, 1202 West Johnson Street, Madison, Wisconsin 53706, USA.
Behav Neurosci. 2003 Jun;117(3):505-16. doi: 10.1037/0735-7044.117.3.505.
In a test of the effects of cortisol on emotional memory, 90 men were orally administered placebo or 20 or 40 mg cortisol and presented with emotionally arousing and neutral stimuli. On memory tests administered within 1 hr of stimulus presentation, cortisol elevations caused a reduction in the number of errors committed on free-recall tasks. Two evenings later, when cortisol levels were no longer manipulated, inverted-U quadratic trends were found for recognition memory tasks, reflecting memory facilitation in the 20-mg group for both negative and neutral information. Results suggest that the effects of cortisol on memory do not differ substantially for emotional and neutral information. The study provides evidence of beneficial effects of acute cortisol elevations on explicit memory in humans.
在一项关于皮质醇对情绪记忆影响的测试中，90名男性被口服给予安慰剂、20毫克或40毫克皮质醇，并呈现情绪唤起性刺激和中性刺激。在刺激呈现后1小时内进行的记忆测试中，皮质醇水平升高导致自由回忆任务中的错误数量减少。两个晚上后，当不再对皮质醇水平进行操控时，在识别记忆任务中发现了倒U形二次趋势，这反映出20毫克组对负面和中性信息的记忆促进作用。结果表明，皮质醇对情绪信息和中性信息的记忆影响没有实质性差异。该研究提供了急性皮质醇水平升高对人类显性记忆有有益影响的证据。
