Clue to attraction that is sexual in lesbian mind

Clue to attraction that is sexual in lesbian mind

Lesbian and women that are heterosexual differently to certain individual odours, a brain-scanning study has discovered. The homosexual ladies revealed brain that is similar to heterosexual males if they inhaled specific chemical substances, that might be pheromones, the scientists state.

“But our research can’t answer questions of cause and effect, ” cautions lead researcher Ivanka Savic during the Karolinska Institute in Stockholm, Sweden. “We can’t state whether or not the differences are due to pre-existing variations in their minds, or if previous experiences that are sexual trained their minds to react differently. ”

Savic and her peers asked 12 women that are lesbian 12 heterosexual females to breathe focused samples of two steroids: EST, which will be produced by oestrogen and discovered when you look at the urine of expectant mothers; and plus, which can be produced from progesterone and discovered in men’s armpit perspiration.

Positron emission tomography (animal) scans revealed which areas of the brains that are women’s to every chemical. Once the heterosexual ladies smelled AND their brains showed activity into the anterior hypothalamus, an area associated with the mind considered to process intimate cues. But EST just produced task into the region that is olfactory of minds, the area that processes smells.

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The lesbians, nonetheless, just revealed activity into the region that is olfactory odour they smelled.

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