Lesbian and women that are heterosexual differently to particular peoples odours, a brain-scanning research has discovered. The homosexual ladies revealed comparable mind task to heterosexual guys once they inhaled particular chemical compounds, which can 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 perhaps the distinctions 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 within the urine of expectant mothers; and plus, which will be based on progesterone and discovered in men’s armpit perspiration.
Positron emission tomography (animal) scans revealed which areas of the women’s brains responded to each chemical. If the heterosexual ladies smelled AND their brains showed activity into the hypothalamus that is anterior a area of this mind considered to process intimate cues. But EST just produced task into the olfactory area of these minds, the area that processes smells.
The lesbians, nonetheless, just revealed task into the region that is olfactory odour they smelled.
The scientists conclude why these “pheromone-like stimuli” create various reactions into the anterior hypothalamus of females of various intimate orientations, and therefore their research supports the concept that the anterior hypothalamus plays a part in intimate choice. Continue reading