Researchers in Germany used MRI scans to stimulate the clitoris in women with a precise device, identifying the specific brain region activated. This finding offers new hope for women recovering from genital mutilation.
Certain body parts have long eluded precise mapping in the human brain's somatosensory cortex, which processes sensory signals from the body. The clitoris was among them. However, a study published in the Journal of Neuroscience on December 9, 2021, by experts from Freie Universität Berlin changes that. They located the brain area responding to clitoral stimulation.
The team conducted MRI scans on 20 female volunteers aged 18-45 while they used a specialized tactile stimulator on the clitoris.
Prior studies debated its location—near the hip or foot?—due to imprecise stimulation activating nearby areas and muddying brain responses. The Berlin researchers developed a device for isolated clitoral activation (see image below).
Results place the clitoris in the somatosensory cortex adjacent to the penis representation, specifically in Brodmann areas 1, 2, and 3a along the postcentral gyrus. Position varies slightly by individual.
Researchers also measured cortical thickness in the top 10 active regions, exploring links to sexual activity frequency. They found correlations: more frequent intercourse associated with thicker genital sensory areas. Causation remains unproven, warranting further study.
This work holds promise for treating women affected by genital mutilation or sexual trauma. The device could quantify pleasure signals post-reconstructive surgery, complementing psychological care.
