Abstract
Changes in Fingure-Pulse Volume (FPV) during CO2 inhalation were studied in patients diagnosed as having Anxiety disorder with history of panic attacks. Waxing and Waning of the FPV was observed in all the cases after CO2 inhalation, and this pattern was significantly intensified during panic attacks during the study. The significance and the mechanism underlying the same is discussed.
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Selected References
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- Bloom L. J., Houston B. K., Burish T. G. An evaluation of finger pulse volume as a psychophysiological measure of anxiety. Psychophysiology. 1976 Jan;13(1):40–42. doi: 10.1111/j.1469-8986.1976.tb03334.x. [DOI] [PubMed] [Google Scholar]
- Elam M., Yao T., Thorén P., Svensson T. H. Hypercapnia and hypoxia: chemoreceptor-mediated control of locus coeruleus neurons and splanchnic, sympathetic nerves. Brain Res. 1981 Oct 19;222(2):373–381. doi: 10.1016/0006-8993(81)91040-4. [DOI] [PubMed] [Google Scholar]
- Redmond D. E., Jr, Huang Y. H. Current concepts. II. New evidence for a locus coeruleus-norepinephrine connection with anxiety. Life Sci. 1979 Dec 24;25(26):2149–2162. doi: 10.1016/0024-3205(79)90087-0. [DOI] [PubMed] [Google Scholar]
- Smith T. W., Houston B. K., Zurawski R. M. Finger pulse volume as a measure of anxiety in response to evaluative threat. Psychophysiology. 1984 May;21(3):260–264. doi: 10.1111/j.1469-8986.1984.tb02932.x. [DOI] [PubMed] [Google Scholar]
- Van den Hout M. A., Griez E. Panic symptoms after inhalation of carbon dioxide. Br J Psychiatry. 1984 May;144:503–507. doi: 10.1192/bjp.144.5.503. [DOI] [PubMed] [Google Scholar]