Neurotransmitters in Various Disorders:

	Major Depressive Disorder	Generalized Anxiety Disorder	Panic	Obsessive Compulsive Disorder	Premenstrual Dysphoric Disorder	Phobia	Smoking	ADHD	Obesity
Serotonin	X	X	X	X	X	X
Norepinephrine	X	X	X			X	X	X	X
Dopamine	X						X	X	X

Source: American Psychiatric Association 155th Annual Meeting, May 18 - 23, 2002