Pain-avoidance reactions to unpleasant physical stimuli: neurobiology, reflex pathways, and threat processing in humans
Pain-avoidance reactions to unpleasant physical stimuli are rapid behavioral and physiological responses designed to reduce harm. Although everyday speech may describe these reactions as simply “cringing,” the underlying mechanisms involve nociception, threat appraisal, and autonomic nervous system coordination. When a person anticipates or experiences a noxious stimulus—such as a painful impact—multiple neural systems activate simultaneously.… Read More »