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As the women were stimulated to orgasm, activity rose in one sensory part of the brain, called the primary somatosensory cortex, but fell in the amygdala and hippocampus, areas involved in alertness and anxiety. During actual orgasm, activity fell in many more areas of the brain, including the prefrontal cortex, compared with the resting state... Only one small part of the brain, in the cerebellum, was more active during female orgasm. The cerebellum is normally associated with coordinating movement, though there is also some evidence that it helps regulate emotions.

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