Regional cerebral blood flow changes in female to male gender identity disorder

Psychiatry and Clinical Neurosciences
Hideyuki NawataYasuo Kuwabara

Abstract

Despite a range of research on gender identity disorder (GID), at present there is no scientific consensus on whether the etiology of GID is mental or physical. In particular recent advances in the technology of neuroimaging research have led to an increased understanding of the biological basis of various mental disorders. GID also should be evaluated from this perspective. The aim of the present study was therefore to do the first trial to examine the regional cerebral blood flow (rCBF) in GID. Persons considered biologically male fulfilling the GID criteria are termed male to female (MTF) and, conversely, persons considered biological female are termed female to male (FTM). We compared 11 FTM subjects and nine age- and handedness-matched female control subjects. None of the subjects was regularly taking medication and none had any kind of physical or psychiatric comorbidity. To evaluate rCBF in GID subjects and control subjects, statistical parametric mapping analysis of (99m)Tc-ethyl-cysteinate dimer single-photon emission computed tomography was used. GID subjects had a significant decrease in rCBF in the left anterior cingulate cortex (ACC) and a significant increase in the right insula compared to control subjects. The A...Continue Reading

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Citations

Sep 4, 2013·Hormones and Behavior·Thomas D SteensmaPeggy T Cohen-Kettenis
Jan 15, 2016·International Review of Psychiatry·Baudewijntje P C Kreukels, Antonio Guillamon
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Aug 31, 2021·Frontiers in Human Neuroscience·Stuti ChakrabortyKathy Ruddy

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