Papp L A, Goetz R, Cole R, Klein D F, Jordan F, Liebowitz M R, Fyer A J, Hollander E, Gorman J M
Biological Studies Unit, New York State Psychiatric Institute, NY 10032.
Am J Psychiatry. 1989 Jun;146(6):779-81. doi: 10.1176/ajp.146.6.779.
Seven male panic patients did not panic but were significantly more sensitive to steady-state carbon dioxide inhalation than five male normal control subjects. The male patients' hypersensitivity to carbon dioxide was unrelated to current state of anxiety or acute panic.