Physiology of Emotion

Fig. . : James-Lange Theory of Emotion Perception of physiological changes Emotion experienced Fear Increased heart rate, perspiration Road accident Stimulus Specific physiological changes activity and secretion of endocrine glands, and organises the somatic pattern of emotional behaviour. Limbic System : Along with thalamus and hypothalamus the limbic system plays a vital role in regulation of emotion.

Amygdala is a part of limbic system, responsible for emotional control and involves formation of emotional memories. Cortex : Cortex is intimately involved in emotions. However, its hemispheres have a contrasting role to play. The left frontal cortex is associated with positive feelings whereas the right frontal cortex with negative feelings.

systems function together in a reciprocal manner. In a stressful situation the sympathetic system prepares the body to face the situation. It strengthens the internal environment of the individual by controlling the fall in heart rate, blood pressure, blood sugar, etc. It induces a state of physiological arousal that prepares the individual for fight or flight response in order to face the stressful situation.

As the threat is removed the parasympathetic system gets active and restores the balance by calming the body. It restores and conserves energy and brings the individual back to a normal state. Though acting in an antagonistic manner, the sympathetic and parasympathetic systems are complementary to each other in completing the process of experience and expression of emotion.