Tag: orgasm

Nocturnal orgasms — women have them too

Posted in news, Polls and Surveys by jenapincott on June 25, 2009

For the 40 percent of women who’ve had one, an orgasm in a dream is often more intense that one in real life. And it’s not just a dream — a nocturnal orgasm is a real physiological phenomenon. The dreamer awakens to the same pulsing sensations she’d have during an orgasm from masturbation or sex. Her heart rate surges, her breathing deepens, her vaginal blood flow increases. Her orgasm might even be so fierce that she cramps up as she transitions from dream to reality.

Why?

A few studies shed some light:

1. During REM, the relative pulse pressure in the vagina increases. This also happens to a man’s penis, resulting in nocturnal emissions and morning erections. The content of the dream doesn’t appear to affect genital pulse — after all, it increases every time you sleep — but the physical sensation may influence your dreams (no one knows for sure). At the same time, the parts of the brain that inhibit orgasm, particularity the prefrontal cortex and amygdala, are offline when you’re asleep. (Readers of BLONDES might recall that the left amygdala, associated with anxiety, and the prefrontal correct are quiet during orgasm.)

2. Female orgasm can result from brain activity alone — “no hands.” Evidence of this comes from the research of Beverley Whipple, who studied women who reach orgasm via “self-induced imagery” (i.e. fantasy) alone. Volunteers’ blood pressure, heart rate, pupil size, pain threshold, and so on increase as they reach climax, their hands nowhere near their genitals.

As speculated by Whipple ( see also her research on paralyzed women), a “hands-off” orgasm may channel the vagus nerve, which is like a livewire that extends from the brain to the cervix via the heart, lungs, and other organs. Not every orgasm strums it — but, like hitting the right chord, a vagus nerve climax is said to be richer and more fulfilling. Some women think they can even feel it surge through their bodies from their brainstems. (See previous blog about asphyxiophiliacs.) It’s interesting: Vagus nerve activity might be one reason why so many women say their nocturnal orgasms are so much stronger than their diurnal ones.

Only in their dreams….

When masturbation is deadly

Posted in news by jenapincott on June 8, 2009

AskNinja_DavidCarradineThe scene: A hotel room in Bangkok. Inside the closet, a dead man. He’s leaning back in a cat’s cradle of cords looped around his neck, his legs, his exposed genitals.

Such was the ignominious death this week of Kung Fu star David Carradine. At first mistaken for a suicide, a second look suggests a more prurient event. One end of a length of shoelace was wound around the 72-year-old’s neck and the other encircled his penis. Both of his hands were bound with a cord which was also tied around his neck. As he relaxed into position he was likely masturbating, head thrown back, his grip tightening along with the noose.

Why?

The strongest orgasms are experienced at the threshold of consciousness. Or at least that’s what asphyxiophiliacs, devotees of autoerotic asphyxiation (AEA), believe. Orgasm requires the prefrontal cortex, the seat of reason and behavioral control, to go “offline.” And the prefrontal cortext happens to be the first region of the brain affected by oxygen deprivation. The strangled masturbator feels woozy and giddy; dreamlike. Pressure on the vagus nerve in the neck accentuates the sensation. (Readers of BLONDES might recall that stimulation of the vagus nerve is one reason why sex with a partner trumps normal masturbation.) Uninhibited by the prefrontal cortex, pleasure regions of the brain preside. The result is orgasmic euphoria.

What’s supposed to happen next is the erection slackens and so do the cords. The blood rushes back to the brain. The prefrontal cortex goes back online. And the asphyxiophiliac, now compos mentis, releases himself from the bind.

But every year at least 1,000 men in the U.S. never come down from their autoerotic high. The cords get caught, the blood never again rises about the neckline (especially if the noose is attached to a fixed object above). Or too much pressure on the vagus nerve causes the heart to slow down or stop, resulting in cardiac arrest. And the oblivious onanist leaves behind a body in a most compromised state.

The problem with autoerotic asphyxiation is the auto part. Although strangulation is never safe, solitary strangulation is obviously the riskiest. Why do it without a partner present? Why don’t enthusiasts invent a lifesaving device to revive themselves when oxygen levels are too low or when the heart slows down? There are safer forms of “breath play”.

But the danger itself is obviously what gets people off.

What a wiggle reveals

Posted in news by jenapincott on December 12, 2008

1508213496_4fdbc3bf8aI couldn’t help but to post the latest news on the science of the “wiggle walk” — a study that shows that trained experts can tell if a woman has vaginal orgasms based on her gait.

As discussed in-depth in BLONDES, much has been made of the way women walk. For instance, the wigglier the walk, the curvier the woman, and — surprisingly — the more likely she is not to be ovulating.

And now there’s more.

In the current study, sixteen Belgian woman provided a history of their sexual behavior, including the ability to have vaginal orgasms from intercourse alone , and then were videotaped walking in a public place. Two sexologists and two sexologists-in-training, all of whom were unaware of the women’s sexual histories, were asked to guess which women could achieve vaginal orgasm. Judging from the way the women swiveled and sashayed, the experts were accurate about 80 percent of the time.

What is it about the saunter of a vaginally orgasmic woman that gives her away? The answer, according to the researchers, Aurelie Nicholas and Stuart Brody, involves differences in stride length and vertebral rotation. Easily-orgasmic women have a gait that “comprises fluidity, energy, sensuality, freedom.” Whether it’s due to unimpaired, unlocked pelvic muscles that release the flow of energy — or simple sexual self-confidence — remains to be seen.

Personally, I think it’s all interesting, but I’d like to see a bigger n here: 16 women and 4 sexologists is a tiny study. Plus, if there’s something to it, would the gaits be distinctive to the “untrained” eye? Reminds me of what I was told when I was thirteen years old. I spent a summer picking tobacco with a crew of farm workers who insisted they could tell whether a woman is a virgin based on her walk. Those guys also taught me how to spit.

Archives

Connect on Facebook

Top Posts & Pages