The significant theories of emotion can be divided into three primary categories: physiological,
neurological, and cognitive. Physiological theories imply that activity within the body can be accountable for emotions. Neurological theories suggest that activity within the brain leads to emotional responses. Theories by James-Lange, Cannon-Bard, and Schachter-Singer contradict the common-sense theory.
James-Lange The
James-Lange theory of emotion was proposed by psychologist William James and physiologist
Carl Lange. This theory suggests that emotions occur as a result of physiological responses to outside
stimuli or events. For example, this theory suggests that if someone is driving down the road and sees the headlights of another car heading toward them in their lane, their heart begins to race (a physiological response) and then they become afraid (fear being the emotion).
Cannon-Bard The
Cannon-Bard theory, which was conceptualized by
Walter Cannon and Phillip Bard, suggests that emotions and their corresponding physiological responses are experienced simultaneously. Using the previous example, when someone sees the car coming toward them in their lane, their heart starts to race and they feel afraid at the same time.
Schachter-Singer Stanley Schachter and Jerome Singer proposed a theory also known as the
two-factor theory of emotion, which implies emotion have two factors: physical arousal and cognitive label. This suggests that if the physiological activity occurs first, then it must cognitively be distinguished as the cause of the
arousal and labeled as an emotion. Using the example of someone seeing a car coming towards them in their lane, their heart would start to race and they would identify that they must be afraid if their heart is racing, and from there they would begin to feel fear. ==Gender differences==