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Kayt Sukel was Girls machine orgasm undergraduate research assistant in a neuroscience lab at Harvard University before she decided to jump right into science -- literally. She crawled inside a functional MRI machine, where she was tethered with a mesh net harness to hold her head still, and sexually stimulated herself to climax in that awkward setting -- not just once, but twice, so researchers could map her brain activity.

It was a scene even she admits felt straight Girls machine orgasm of a porno film, but Sukel said she knew she was contributing to the scientific understanding of what happens to the brain during orgasm. And it made great fodder for a book. And I had helped science while doing it.

Triumph for all parties concerned! Sukel, 37, writes about that and much more in her new book, "Dirty Minds: How Our Brains Influence Love, Sex, and Relationships," which examines how neurobiology shapes how we love and bond with others.

Other books have been written about "the Girls machine orgasm regions and what is going on downstairs," but this well-researched book helps readers find out "what's going on upstairs. One of her most surprising discoveries was that men's and women's brains in love are not that different.

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Sukel explores what in the brain makes a person fall in love and why "good girls like bad boys. And what does science say about attracting the right person? When Sukel had her son, she discovered firsthand the infatuating love of a child, which serves an evolutionary purpose. During orgasm, as well as during lactation, the brain releases the so-called "love hormone" oxytocin. In studies of maternal Girls machine orgasm in prairie voles, oxytocin makes the female more interested in her offspring.

And she gets faster at catching prey.

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In males, the hormone vasopressin seems to have a similar effect, encouraging monogamy. Nonetheless, it's hard to make rules about men and women.

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Hormonal action on the brain starts early, even in utero. At six to 12 weeks gestation, a fetus with XY male chromosomes will get a rush of testosterone Girls machine orgasm helps create the developing penis. Nowhere are brain circuits more alight than during the human orgasm, and Sukel wanted to learn more about the neurobiology of sex.

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At first she felt competitive, wondering if any of the other subjects had failed at climaxing inside the loud machine. She was reassured by lead researcher Barry Komisaruk.

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But Girls machine orgasm too many," he told her. Understanding the physiology of climaxing is still a mystery, according to Komisaruk, a professor of psychology at Rutgers and author of the book, "The Science of Orgasm.

Stimulation of the genitals triggers a cluster of nerve activity that moves to the sensory cortex in the brain, and then on to various parts of the limbic system. Most immediately activated are the amygdala, which controls emotion and heart rate; the hippocampus, which controls memory and fantasy; and the cerebellum, which controls deep muscle tension.

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Next, Girls machine orgasm frontal cortex, which controls executive function, is activated, and then the hypothalamus, releasing oxytocin, and some other areas before "everything cools down," he said. Powerful endorphins are also activated that raise a person's pain threshold. In both men and women, orgasm works roughly the same way, said Komisaruk.

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His studies focus on which parts of the brain are activated in which sequence from the start of genital stimulation to orgasm. We want to Girls machine orgasm this up Girls machine orgasm a possible therapeutic procedure to bypass or get around the block. Therapy might involve neurofeedback in "real time," allowing a person to view the parts of the brain critical to orgasm and to direct the body to respond.

Komisaruk sees real potential with those who cannot experience orgasm because of paralysis or prostate surgery. One woman, who was paralyzed from the waist down and had no external sensation in her genitals, was able to feel the orgasm in her uterus. Brain imaging has revealed that the nerves from the genitals run along the vagus nerve, outside of the spinal column, up to the brain. In another brain imaging study, some women have shown they can have an orgasm just by thinking about it -- without any stimulation.

Sukel is intrigued by the way Komisaruk emphasizes "the bigger picture" in his research. Orgasm just may provide a "novel way" to understand touch and allow humans to modulate their feelings, according to Sukel. Play Courtesy Kayt Sukel.

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