Panic disorder involves all the following except?
Correct answer : B. Glutamate
Intravenous administration of the cholecystokinin B receptor agonists, CCK-4 and pentagastrin, reliably and dose dependently provoke panic attacks in panic disorder patients.
Ref: Lexicon of psychiatry, neurology, and the neurosciences By Frank J. Ayd (via google books)
Neurotransmitters commonly implicated int he etiology of panic disorder include norepinephrine, serotonin and gamma aminobuyric acid.
Ref: The Corsini Encyclopedia of Psychology, Volume 3 By Irving B. Weiner, W. Edward Craighead (via google books)