Brain Activation in Response to Visually Evoked Sexual Arousal in Male-to-Female Transsexuals: 3.0 Tesla Functional Magnetic Resonance Imaging
Korean Journal of Radiology
;
: 257-264, 2012.
Artigo
em Inglês
| WPRIM
| ID: wpr-89590
ABSTRACT
OBJECTIVE:
This study used functional magnetic resonance imaging (fMRI) to contrast the differential brain activation patterns in response to visual stimulation with both male and female erotic nude pictures in male-to-female (MTF) transsexuals who underwent a sex reassignment surgery. MATERIALS ANDMETHODS:
A total of nine healthy MTF transsexuals after a sex reassignment surgery underwent fMRI on a 3.0 Tesla MR Scanner. The brain activation patterns were induced by visual stimulation with both male and female erotic nude pictures.RESULTS:
The sex hormone levels of the postoperative MTF transsexuals were in the normal range of healthy heterosexual females. The brain areas, which were activated by viewing male nude pictures when compared with viewing female nude pictures, included predominantly the cerebellum, hippocampus, putamen, anterior cingulate gyrus, head of caudate nucleus, amygdala, midbrain, thalamus, insula, and body of caudate nucleus. On the other hand, brain activation induced by viewing female nude pictures was predominantly observed in the hypothalamus and the septal area.CONCLUSION:
Our findings suggest that distinct brain activation patterns associated with visual sexual arousal in postoperative MTF transsexuals reflect their sexual orientation to males.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Estimulação Luminosa
/
Nível de Alerta
/
Hormônios Esteroides Gonadais
/
Transexualidade
/
Processamento de Imagem Assistida por Computador
/
Mapeamento Encefálico
/
Imageamento por Ressonância Magnética
/
Literatura Erótica
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Korean Journal of Radiology
Ano de publicação:
2012
Tipo de documento:
Artigo
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