Final answer:
The James-Lange theory asserts that emotions result from physiological arousal, while the Cannon-Bard theory suggests that emotions and physiological arousal occur simultaneously and independently. The Schachter-Singer two-factor theory states that emotions arise from a combination of physiological arousal and cognitive appraisal.
Step-by-step explanation:
The James-Lange theory of emotion asserts that emotions result from physiological arousal. For example, if you were confronted with a venomous snake, your body would experience increased heart rate and respiration. According to this theory, you would only feel fear after experiencing these physiological changes.
However, another theory, the Cannon-Bard theory, suggests that emotions and physiological arousal occur simultaneously and independently. In this theory, encountering a snake would elicit fear at the same time as your body's fight or flight response. The Schachter-Singer two-factor theory states that emotions arise from a combination of physiological arousal and cognitive appraisal. It suggests that physiological arousal is interpreted in context to produce the emotional experience.