Emotion

Emotions are subjective experiences that involve physiological arousal and cognitive appraisal.

The limbic system, autonomic nervous system, and reticular activating system interact in the processing of emotion.

According to appraisal theory, our interpretation of a situation causes an emotional response that is based on that interpretation.

According to the James–Lange theory of emotion, emotions arise from physiological arousal. 

The Cannon–Bard theory of emotion argues that physiological arousal and emotional experience occur simultaneously but independently.

The Schachter–Singer theory views emotion as the result of the interaction between two factors: physiological arousal and cognition.

The facial feedback hypothesis asserts that facial expressions are capable of influencing our emotions.

Culture can have a profound impact on the way in which people display, perceive, and experience emotions.