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首页> 外文期刊>The journal of sexual medicine >Women's clitoris, vagina, and cervix mapped on the sensory cortex: fMRI evidence.
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Women's clitoris, vagina, and cervix mapped on the sensory cortex: fMRI evidence.

机译：女性的阴蒂，阴道和子宫颈位于感觉皮层上：fMRI证据。

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INTRODUCTION: The projection of vagina, uterine cervix, and nipple to the sensory cortex in humans has not been reported. AIMS: The aim of this study was to map the sensory cortical fields of the clitoris, vagina, cervix, and nipple, toward an elucidation of the neural systems underlying sexual response. METHODS: Using functional magnetic resonance imaging (fMRI), we mapped sensory cortical responses to clitoral, vaginal, cervical, and nipple self-stimulation. For points of reference on the homunculus, we also mapped responses to the thumb and great toe (hallux) stimulation. MAIN OUTCOME MEASURES: The main outcome measures used for this study were the fMRI of brain regions activated by the various sensory stimuli. RESULTS: Clitoral, vaginal, and cervical self-stimulation activated differentiable sensory cortical regions, all clustered in the medial cortex (medial paracentral lobule). Nipple self-stimulation activated the genital sensory cortex (as well as the thoracic) region of the homuncular map. CONCLUSION: The genital sensory cortex, identified in the classical Penfield homunculus based on electrical stimulation of the brain only in men, was confirmed for the first time in the literature by the present study in women applying clitoral, vaginal, and cervical self-stimulation, and observing their regional brain responses using fMRI. Vaginal, clitoral, and cervical regions of activation were differentiable, consistent with innervation by different afferent nerves and different behavioral correlates. Activation of the genital sensory cortex by nipple self-stimulation was unexpected, but suggests a neurological basis for women's reports of its erotogenic quality.
机译：引言：尚无人类将阴道，子宫颈和乳头投射到感觉皮层的报道。目的：本研究的目的是绘制阴蒂，阴道，子宫颈和乳头的感觉皮层视野，以期阐明潜在性反应的神经系统。方法：使用功能性磁共振成像（fMRI），我们绘制了皮层对阴蒂，阴道，宫颈和乳头自我刺激的感觉反应。对于小肠的参考点，我们还绘制了对拇指和大脚趾（hallux）刺激的反应。主要观察指标：本研究的主要观察指标是各种感觉刺激激活的大脑区域的功能磁共振成像。结果：阴蒂，阴道和宫颈的自我刺激激活了可区分的感觉皮层区域，全部聚集在内侧皮层（内侧中央小叶旁）中。乳头的自我刺激激活了人体图的生殖器感觉皮层（以及胸腔）区域。结论：根据本研究，女性在应用阴蒂，阴道和宫颈自我刺激后，首次在文献中首次证实了仅在男性脑电刺激的基础上在经典Penfield人体中确定的生殖器感觉皮层，并使用功能磁共振成像观察他们的局部大脑反应。阴道，阴蒂和宫颈的激活区域是可区分的，与不同传入神经和不同行为相关的神经支配相一致。乳头自我刺激可激活生殖器感觉皮层，这是出乎意料的，但它为女性报告其雌激素质提供了神经学基础。

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