Physiological Responses to Pictures and Exercise in Dysphoria

提出了两个实验。每一项都是为了提供一系列研究的背景，这些研究旨在检查被诊断为情绪障碍的人中体育活动的潜在治疗效果。这项建议考虑了锻炼对焦虑症患者情绪反应的影响。实验一的目的是检测焦虑和非焦虑个体在持续的愉快、中性和不愉快的图片观看期间的面部肌电(EMG)、心率、血压和皮肤电导反应，这些个体的自我报告的体力活动水平不同。据预测，烦躁不安的个体将表现出对唤醒愉悦的迟钝情绪反应。 此外，这种影响在非体力活动的人中会更大。实验二的目的是考察急性体育锻炼对焦虑症患者与非焦虑症患者在情绪图片观看时的心理生理反应的影响。据预测，运动将会激活 改善焦虑症患者的食欲情绪系统，恢复食欲情绪反应。此外，在两组人中，有氧健身预计都与基线时对愉快和不愉快刺激的情绪反应呈正相关。恢复愉快情绪反应的最大效果预计发生在最不适合有氧运动的烦躁不安的人身上。

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.