Thorsteinsson E B, James J E, Gregg M E
School of Psychological Science, La Trobe University, Melbourne, Australia.
Health Psychol. 1998 Sep;17(5):436-44. doi: 10.1037//0278-6133.17.5.436.
The authors tested the effects of a laboratory analogue of social support on reactivity to laboratory-based behavioral challenge. Video-relayed supportive commentary was provided by a same-sex confederate while participants (40 healthy men and women assigned to support and no-support groups) performed a demanding computer task, and their heart rate, systolic and diastolic blood pressure, and salivary cortisol were measured. The authors found that heart rate and cortisol level (but not blood pressure) were attenuated in the support condition for both genders. Objective performance on the task was similar in both groups, but the social support group reported higher levels of perceived support and rated the task as easier than did participants in the no-support condition. Video presentation offers new opportunities for systematically examining social support and its effects.
作者测试了社会支持的实验室模拟对基于实验室的行为挑战反应性的影响。在参与者（40名健康男性和女性，被分配到支持组和无支持组）执行一项要求较高的计算机任务时，由一名同性同盟者提供视频转播的支持性评论，并测量他们的心率、收缩压和舒张压以及唾液皮质醇。作者发现，在支持条件下，男女的心率和皮质醇水平（但不包括血压）均有所降低。两组在任务上的客观表现相似，但社会支持组报告的感知支持水平更高，并且认为该任务比无支持条件下的参与者更容易。视频展示为系统地研究社会支持及其影响提供了新机会。
