By Roxanne Khamsi. Women may have a reputation for demanding lengthy foreplay, but they become sexually aroused as quickly as men, according to a new study that used thermal imaging to measure increased blood flow to genital regions. While watching pornography, both sexes reach peak arousal within 10 minutes, on average, researchers report. Earlier attempts to record sexual arousal have involved invasive probes and electrodes, according to Tuuli Kukkonen, who helped conduct the study led by Irv Binik at McGill University Health Centre in Montreal, Canada. For women participating in previous studies, this sometimes meant the use of an uncomfortable probe similar to a tampon, inserted into the vagina. The thermal imaging camera can measure temperature changes from a distance and relay the information to a computer for analysis.
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What science can tell us about the many bizarre quirks of human desire
The belief that men are more likely to get turned on by sexual images than women may be something of a fantasy, according to a study suggesting brains respond to such images the same way regardless of biological sex. Writing in the Proceedings of the National Academy of Sciences , Noori and his colleagues report how they came to their conclusions by analysing the results of 61 published studies involving adults of different biological sex and sexual orientation. The subjects were shown everyday images of people as well as erotic images while they lay inside a brain-scanning machine. Noori said all participants rated the sexual images as arousing before being scanned. Previously studies based on self-reporting have suggested men are more aroused by images than women, and it has been proposed that these differences could be down to the way the brain processes the stimuli — but studies have returned different results. Now, looking at the whole body of research, Noori and his colleagues say they have found little sign of functional differences. For both biological sexes, a change in activity was seen in the same brain regions including the amygdala, insula and striatum when sexual images were shown. However, activity was more widespread in the case of explicit pictures than video, and there were some small differences in the regions activated linked to sexual orientation.
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Ask a man what the magic formula is for turning on a woman sexually and you're likely to be met with a heaving shrug. For years, scientists have been just as perplexed. And to a large degree, arousal has mystified even women themselves. The only consensus: the female mind, heart, and genitals all need to be in on the effort in order for arousal to occur. But recently, a handful of sex researchers have gotten on the case — and their fascinating findings may help improve your sex life.
This article originally appeared on AlterNet. The question of what women want has been baffling people for years. Many books, papers, irate blogs, pick-up artist seminars, films, art, and music have been devoted to this pressing topic, each one seeming to contradict the last. If we are to believe fan fiction erotica involving characters from books, TV and movies , which is primarily written by women, women want to see Severus Snape from Harry Potter get it on with a Teletubby.
