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Electroencephalographic Correlates of Sexual Arousal Induced by Sexually-Explicit Reading in Human Females

Journal of Behavioral and Brain Science 2018年第11期8卷 599-614页

作者： Miguel Angel Guevara Carolina Gomez-Navarro Claudia Amezcua-Gutierrez marisela hernandez-gonzalez Anders Agmo Institute of Neuroscience CUCBAUniversity of GuadalajaraGuadalajaraJaliscoMexico Psychology Department Tromso UniversityTromsoNorway

This study explored the cortical functionality in young women while reading a sexually-explicit text. Electroencephalographic activity (EEG) was recorded in heterosexual women while reading either a sexually-explicit text or one with neutral content. Absolute power (AP) and the degree of EEG synchronization among the prefrontal, temporal and parietal cortices were analyzed for the different EEG bands. To evaluate sexual arousal, valence and general activation, Likert-type and Manikin scales were applied. Subjects scored the sexually-explicit text as more pleasurable, and reported greater general activation and sexual arousal than while reading the neutral one. During reading of the sexually-explicit text only, they showed a higher AP in the beta and gamma bands in temporal areas in both hemispheres, and in the theta band in parietal ones, with a lower degree of EEG synchronization between prefronto-temporal areas in the fast bands. Results show that both hemispheres were activated in these sexually-aroused women. The low bilateral synchronization between prefrontal and temporal regions indicates the independent functionality of these cortices, which could be a requirement for inducing and maintaining sexual arousal during reading of sexually-explicit texts in women. These data should broaden our knowledge of the cortical mechanisms that underlie sexual arousal in women.

关键词： Sexual Arousal EEG Sexually-Explicit Reading Erotic Reading Women

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Testosterone Levels and Development of the Penile Spines and Testicular Tissue during the Postnatal Growth in Wistar Rats

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Advances in Sexual Medicine 2013年第3期3卷 1-9页

作者： Marcela Arteaga Silva Rosa M.Vigueras Villasenor Socorro Retana Marquez marisela hernandez gonzalez Herlinda Bonilla Jaime Xochitl Guzman García Jose Luis Contreras Montiel Department of Biology of Reproduction Metropolitan Autonomous UniversityIztapalapaMexico Laboratory of Reproductive Biology National Institute of PediatricsMexico CityMexico Institute of Neuroscience University of GuadalajaraJaliscoMexico Department of Hydrobiology Metropolitan Autonomous UniversityIztapalapaMexico

Aim of Study: Gonadal hormones exert a profound influence on the development, structure and function of the sexual organs. The testosterone is one of the androgens that plays an essential role in the development of sexual organs in male mammals. Therefore, the present study was undertaken to evaluate the testosterone levels and developmental pattern of the penile spines and seminiferous tubules during early postnatal life of Wistar rats. Methods and Materials: At 7, 14, 21, 28, 35, 42, 49, 56, 63 and 70 days after birth, penile and testicular tissues of male rats were dissected out and fixed for histological study and plasma testosterone levels were determined using high resolution chromatography. Results: An increase in the number of penile follicles, primarily in the distal region of the penis, was observed from postnatal days 14 to 42, followed by a gradual decrease. Penile spines were absent from birth until the first growth peak, which was observed at 42 postnatal days. Both testicular weight and the area of seminiferous tubules showed gradual increases before achieving their highest values at 42 postnatal days. Similarly, a gradual increase in testosterone levels was detected from day 28, with a peak at 42 postnatal days. Conclusions: These data show a temporal association between the development of the penile spines and testicular tissue with gradual increases in testosterone levels. These results may contribute to a better understanding of the behavioral, hormonal and morphological changes underlying sexual maturation in male rats.

关键词： Testosterone Penile Spines Testicular Tissue Postnatal Growth Male Rat

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