Erotic female stimulation

Previous studies have demonstrated variable influences of sexual hormonal states on female brain activation and the necessity to control for these in neuroimaging studies. However, systematic investigations of these influences, particularly those of hormonal contraceptives as compared to the physiological menstrual cycle are scarce. We used functional magnetic resonance imaging to measure hemodynamic responses as an estimate of brain activation during three different experimental conditions of visual erotic stimulation: dynamic videos, static erotic pictures, and expectation of erotic pictures. Plasma estrogen and progesterone levels were assessed in all subjects. No strong hormonally modulating effect was detected upon more direct and explicit stimulation viewing of videos or pictures with significant activations in cortical and subcortical brain regions previously linked to erotic stimulation consistent across hormonal levels and stimulation type. Upon less direct and less explicit stimulation expectation , activation patterns varied between the different hormonal conditions with various, predominantly frontal brain regions showing significant within- or between-group differences.

The concept of the G-spot, a supposed pleasure-inducing zone inside the front wall of the vagina, has eluded women for decades. Since then, women and their partners have been desperate to find the G-spot, and magazines have devoted countless pages to helping them do so. If people can find the spot and stimulate it through penetration using the penis or fingers, the theory goes, women can have out-of-this-world orgasms without any other stimulation. On Cosmopolitan UK's website, a writer says women can find their own G-spots by sticking a finger about one-third of the way into their vaginas where they will feel the "spongy area. But according to gynecologist and "The Vagina Bible" author Dr. Jen Gunter, recent research suggests the G-spot doesn't even exist. And even if it does, believing finding it is the key to out-of-this-world orgasms is dangerous since sexual pleasure is more complicated than touching one area of the body and calling it a day.

While certain bits of anatomy ahem, genitalia are well-known as sites of sexual pleasure, getting turned on doesn't have to be limited to below the belt. Other areas of the human body have a high concentration of nerve endings, so they're particularly sensitive to touch, pressure, or vibration. These so-called " erogenous zones " can contribute to sexual arousal—think of them as the road map to a happy ending.

Meredith Chivers is a creator of bonobo pornography. The bonobo film was part of a series of related experiments she has carried out over the past several years. She showed the short movie to men and women, straight and gay. To the same subjects, she also showed clips of heterosexual sex, male and female homosexual sex, a man masturbating, a woman masturbating, a chiseled man walking naked on a beach and a well-toned woman doing calisthenics in the nude. While the subjects watched on a computer screen, Chivers, who favors high boots and fashionable rectangular glasses, measured their arousal in two ways, objectively and subjectively.