The TPR really does a great job at explaining those. So, emotions have 3 components:
Behavioral = include any type of behavior
Physiological = Any type of bodily symptoms such as sweating, increased in HR
Cognitive = which is basically the appraisal of the emotion by the mind or brain, that is what the individual believes the emotion is, which is kind of tricky as it seems to overlap with appraisal. ?I guess, one way to distinguish, appraisal from cognition is that the letter involves the mind/brain whereas the former is just what the individual believes the emotion is.
James- Large, pretty much states that the Behavioral aspect of emotion in tandem with the physiological precede the cognitive labeling of the emotion itself. That is, upon sighting a bear, the James Large theory state that the individual Heart Rate will increase directly causing the individual to run, something that the individual will perceive as fear. Hence, it state that the individual fear isn't directly tied to his sighting of the bear but rather the act of running itself.
Canon-Bard, on the other hand, stated that the behavioral aspect of the emotion occurred last, and was preceded by the physiological and cognitive aspect of emotion,both of which occurred simultaneously but still independently of each other. Thus, upon sighting a Bear, the physiological increase in HR is interpreted as fear, whereas the same increase in HR, can also be interpreted as sexual arousal. Thus, this guy pretty much explains the overlap between physiological response for totally different emotion (i.e. Fear and Sexual Arousal)
Schaster-Singer theory, emphasizes the link between physiological arousal and cognition; Thus like the Canon-Bard theory where both the physiological and cognitive aspect of emotion preceded the behavioral aspect of emotion, this theory goes a step further by having one (physiological) occurs before the (cognitive aspect). So both, no longer occur simultaneously, but rather the mind/brain decides whether what's happening is fear or sexual arousal. And just like the James-Lange, it states that physiological aspect of emotion precede any other aspect of emotion.
Also knowing the Lazarus-Theory of emotion won't hurt you...
So the Lazarus Theory is also known as the appraisal theory as it suggest that the appraisal of an emotion precede any of its component. That is the Appraisal occurs first followed by the Physiological and cognitive components of the emotion and then the behavioral. So, upon hearing a noise at night, an individual might appraise the situation as either a Burglary or a snake hissing in his house, which is different from the cognition of the emotion, that is the actual labeling of the emotion by the brain.
