Exercise Psychology is the study of psychological responses and adaptations to acute and chronic physical activity. The graduate program at UWMadison focuses on the psychobiological aspects of physical activity in both healthy and diseased populations. Research in the Exercise Psychology Laboratory has been generally concerned with quantifying the psychophysiological responses to exercise. Numerous behavioral methods have been used to determine affective and perceptual responses to exercise including the use of biofeedback, hypnosis, imagery, meditation, and traditional relaxation interventions such as autogenic training. More recently, the laboratory's focus has been on the psychophysiological aspects of pain, fatigue, and perceived exertion during and following exercise. These studies are being conducted in both healthy participants and patients with chronic pain and fatigue and are aimed at understanding the psychophysiological mechanisms that underlie the perceptual experience. Neuroimaging experiments using functional magnetic resonance imaging (fMRI) are also being conducted to determine neural responses related to pain, fatigue, and exercise.