Final answer:
The James-Lange theory of emotion states that emotions arise from physiological arousal. The Cannon-Bard theory posits that emotional experience occurs simultaneously and independently of physiological arousal. The Schachter-Singer two-factor theory suggests that emotions are the result of both physiological arousal and cognitive appraisal.
Step-by-step explanation:
The James-Lange theory of emotion asserts that emotions arise from physiological arousal. According to this theory, we experience fear after physiological arousal, such as increased heart rate, has occurred. Different emotions are associated with different arousal patterns. However, the Cannon-Bard theory states that emotional experience occurs simultaneously and independently of physiological arousal. Finally, the Schachter-Singer two-factor theory suggests that emotions are the result of both physiological arousal and cognitive appraisal of the situation.