Answer 1- According to the James-Lange theory, experiencing a situation leads to physiological responses in the body. Our interpretation and analysis of these responses or sensations results in physical reactions. Thus, from this theory, when you walk alone late at night and hear footsteps behind you, you will feel either afraid or unaffected, depending on whether or not you experience physical arousal and how you interpret this physical arousal.
Answer 2: According to the Cannon-Bard theory, emotional responses result from both interpretations or emotions, as well as bodily responses to external stimuli simultaneously. Therefore, according to the Cannon-Bard theory, when you walk alone late at night and hear footsteps behind you, you will feel afraid only if you experience physical arousal as well as thoughts of fear, both at the same time.
Answer 3: According to the Schacter-Singer theory, emotional responses result from physical arousal as well as a adding a cognitive label to a situation. Thus, according theory, when you walk alone late at night and hear footsteps behind you, you will experience fear if you feel physically aroused (heart racing, faster breathing, etc.) as well as if you label the situation such as dangerous of fearful: "I am in danger, I will be attacked."