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Observing Erotic Videos With Heterosexual Content Induces Different Cerebral Responses in Homosexual and Heterosexual Men.

Authors
  • Amezcua-Gutiérrez, Claudia1
  • Marisela, Hernández-González1
  • Fernández Guasti, Alonso2
  • Aguilar, Manuel Alejandro Cruz3
  • Guevara, Miguel Angel1
  • 1 Institute of Neuroscience, CUCBA, University of Guadalajara, Guadalajara, Jalisco, México.
  • 2 Pharmacobiology Department, Center for Research and Advanced Studies, México City, México.
  • 3 Dirección de Investigaciones en Neurociencias, Laboratorio de Cronobiología y Sueño, Instituto Nacional de Psiquiatría "Ramón de la Fuente Muñiz", México City, México.
Type
Published Article
Journal
Journal of homosexuality
Publication Date
Jan 01, 2020
Volume
67
Issue
5
Pages
639–657
Identifiers
DOI: 10.1080/00918369.2018.1550331
PMID: 30526443
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

To determine the cerebral functionality associated with the perception and processing of erotic stimuli in men with different sexual orientation, this work evaluated the electroencephalographic activity (EEG) from several cortical areas, as well as subjective arousal in homosexual and heterosexual men during observation of an erotic film with heterosexual content. The heterosexual men rated the erotic video with higher general and sexual arousal than the homosexual participants. During observation of the neutral and erotic videos, both groups showed a decreased amplitude of the alpha band in prefrontal and parietal cortices, indicating increased attention. When watching the erotic video, the homosexual men showed an increased amplitude of the theta and fast bands only in the prefrontal cortex, which could be related to the cognitive processing of the erotic stimulus. These EEG results should broaden our knowledge of the cortical mechanisms related to the different perception and processing of erotic stimuli in men with different sexual orientations.

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