Discuss the role of the amygdala in bipolar disorder.

Amygdale plays the role of mediating in not only physiologic but also behavioral arousal in response to environmental stimuli. In bipolar disorder, amygdale plays a role in emotion-related brain function. Any damage to amygdale leads to changes in the mood states such as facial expression and social withdrawal, as noted in the patient in this scenario. The patient has suddenly become very hyperactive and has been talking incessantly, indicating changes in behavioral arousal and changes in emotions