Barry Komisaruk: How the Brain Experiences Orgasm

Barry Komisaruk was the first to watch the brain during orgasm. Discover what fMRI revealed — and what it means for yoni massage practice.

Before Barry Komisaruk, nobody had watched a woman’s brain during orgasm in real time. The technology did not exist. Funding was hard to get. And the topic made most institutions uncomfortable.

Komisaruk spent decades working past all three obstacles. What he found changed how science understands female pleasure — and what yoni massage practitioners understand about the body they work with.

From Pain Research to Orgasm Science

Komisaruk did not start out studying orgasm. He started with pain. Working at Rutgers University in the 1960s, he studied how animals responded to vaginal touch and found something unexpected: the touch blocked pain. The animals became less responsive to painful input.

He spent years tracing the process. His wife was diagnosed with breast cancer during this period. Watching her suffer pushed him toward research that was directly useful to people. Pleasure and pain, he came to see, were not separate fields. They were the same question asked from different sides.

Earlier researchers like Masters and Johnson had measured the body’s responses to arousal from the outside. Komisaruk wanted to see what was happening inside the brain.

The fMRI Lab at Rutgers — Orgasm Under a Scanner

In the 1990s, fMRI machines became available to researchers. Komisaruk saw the opportunity right away. For the first time, it was possible to watch brain activity in real time while something was actually happening to the body.

Volunteers came to his lab in Newark, New Jersey. They self-touched inside the fMRI machine while the scanner tracked which parts of the brain became active.

Getting funding was difficult. One foundation asked him to remove the word “vaginal” from a grant title before releasing money already approved. He removed the word and kept the research going.

fMRI image showing distinct brain regions activated by clitoris, vagina, and cervix stimulation in the sensory cortex
Each part of the genitals speaks to a different region of the brain. This is why touch in different areas feels genuinely different.
Figure from article "Non-genital orgasms".

Eighty Brain Regions Light Up at Once

What Komisaruk found was not what most people imagine. Orgasm is not a local event in the brain. At the moment of orgasm, around 80 different brain regions become active at the same time. These include areas linked to pleasure, emotion, sensation, memory, and pain.

The brain does not experience orgasm in one small corner. It lights up everywhere at once. That is a lot. The drop after orgasm was as striking as the peak itself — the brain went quiet in a way it rarely does at any other time.

Komisaruk described the fMRI data as a tapestry: a complex pattern that builds toward a peak and then falls sharply. Understanding the full arc of that arousal cycle helps practitioners work with it more precisely.

Four Nerves, One Orgasm

One of the most useful findings in Komisaruk’s work was about the nerves that carry sensation from the genitals to the brain.

He identified four distinct pathways: the pudendal nerve, the pelvic nerve, the hypogastric nerve, and the vagus nerve. Each carries a slightly different signal from a slightly different area. The clitoris, the vagina, and the cervix each project to different regions of the sensory brain.

This means touch of different areas produces genuinely different experiences — not just different intensities of the same feeling. Each area has its own voice in the brain.

The Vagus Nerve — Orgasm Without a Spinal Cord

Perhaps the most surprising finding in Komisaruk’s career came from women with complete spinal cord injuries. By standard science, these women should have felt nothing from genital touch. Their spinal cord could not carry the signal.

But several of them experienced orgasm in his lab. Komisaruk discovered the vagus nerve as the reason. It runs from the brainstem to the internal organs, bypassing the spinal cord entirely. This was a path nobody knew existed.

The role of the vagus nerve in somatic practice is covered in detail in a dedicated article. The female body is wired for sensation in more ways than most books describe. Bodies always find a way.

Orgasm From Thought Alone — No Touch Required

Komisaruk studied women who said they could reach orgasm through thought alone — without any physical contact.

He measured their heart rate, blood pressure, pupil size, and pain threshold. The results nearly matched what he saw during physically triggered ones — the body responded almost the same way whether the trigger was touch or imagination.

This was not a small finding. The brain is not just a receiver of physical signals. It is also a generator of physical experience. The line between what is felt and what is imagined is far less solid than most people assume.

Barry Komisaruk Distinguished Professor sasn.rutgers.edu
Barry Komisaruk
Distinguished Professor
sasn.rutgers.edu

Orgasm and Pain Share the Same Brain Path

One of the more striking findings was that orgasm and pain activate many of the same brain regions. Both engage the insular cortex and the anterior cingulate cortex. These are areas strongly linked to how we feel pain.

Komisaruk found that orgasm raises the pain threshold by up to 50 percent. When orgasm activates these regions, it suppresses pain. The brain uses the same territory for both. But what happens there is entirely different.

This is not random. It is part of how the nervous system handles intense experience.

What His Research Means for Female Pleasure

Komisaruk’s work had a clear aim from the start. He wanted to understand pleasure well enough to help women who could not access it.

Ideas were developed for using fMRI as a feedback tool — letting women see their own brain activity and learn to direct it. Women who had never had an orgasm were studied to find what differed in their brain responses. One theme was always there: a woman’s experience of pleasure depends on far more than physical touch. It depends on her nervous system, her focus, and her sense of safety.

Komisaruk’s work sits alongside a lineage of researchers who brought scientific precision to female sexuality — each one adding a layer that the next could build on.

What Brain Science Reveals for Yoni Massage Practice

Komisaruk’s findings land directly in yoni massage practice. Orgasm is a whole-brain event — not a local genital event. A nervous system that does not feel safe will not allow the full brain response he mapped. Different areas of the genitals project to different brain regions.

This is why varied, unhurried touch reaches more of the brain than fast, focused touch. And thought can generate orgasm. A woman’s inner state during a session matters as much as what happens physically.

Practitioners who want to work with this understanding at the level of skill can find a full framework inside the online yoni massage course.

Categories
Yoni massage course and book
Online course

How to do yoni massage

17 video lessons

Amazon book

How to do yoni massage

Ebook or paper