Related Studies
Various animal and insect models have been used to explore sexual orientation and brain characteristics. One experiment involved genetically altering male Drosophila causing them to have feminized brain structures involved in processing sexually dimorphic contact pheromones. Transformed males showed increase homosexual courtship behaviors to wild-type male flies, and there a correlation was found between the courtship behavior and the expression of the altered gene in the sexually related brain regions.
A 2004 study exploring the difference in brain metabolism between heterosexual and homosexual males found that homosexuals had a significant reduction in hypothalamic glucose metabolism compared to that of heterosexuals with other brain regions including the prefrontal association cortex and portions of the cingulate cortex showing differences in the measured activation.
Read more about this topic: Neuroscience And Sexual Orientation
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