Physiological Responses to Pictures and Exercise in Dysphoria

提出了两个实验。每一项研究都旨在为一系列研究提供背景，这些研究旨在检查身体活动对被诊断患有情绪障碍的个体的潜在治疗效果。本建议考虑运动对焦虑个体情绪反应的影响。实验一的目的是检查面部肌电图（EMG）、心率、血压和皮肤电导在持续愉快、中性和不愉快的图片观看期间的反应，在焦虑和非焦虑的个体中，他们的自我报告的身体活动水平不同。据预测，烦躁不安的个体会表现出迟钝的情绪反应唤起愉快

Two experiments are proposed. Each is designed to provide the background for a line of research aimed at examining the potential therapeutic effects of physical activity among individuals diagnosed with a mood disorder. This proposal considers the effect of exercise on emotional responsiveness in dysphoric individuals. The purpose of experiment one is to examine facial electromyographic (EMG), heart rate, blood pressure, and skin conductance responses during sustained periods of pleasant, neutral, and unpleasant picture viewing in dysphoric and non-dysphoric individuals who vary in their self-reported level of physical activity. It is predicted that dysphoric individuals will exhibit a blunted emotional responsiveness to arousing pleasant stimuli, and furthermore, that this effect will be greater among non-physically active individuals. The purpose of experiment two is to examine the effect of acute physical exercise, compared to a resting control condition, on psychophysiological responses during emotional picture viewing in dysphoric compared to non-dysphoric individuals. It is predicted that exercise will activate the appetitive emotional system in dysphoric individuals and restore appetitive emotional responsiveness. In addition, aerobic fitness is expected to be positively related to emotional responsiveness to both pleasant and unpleasant stimuli at baseline in both groups of individuals. The largest effect for restoring pleasant emotional responsiveness is expected to occur in the least aerobically fit dysphoric individuals.