Clues to brain differences between males and females

The research, published in Neuron, discovered a mechanism for how androgens, male sex steroids, sculpt the brains of male rats to produce behavioral differences, such as more aggression and rougher play behavior. "We already knew that the brains of males and females are different and that testosterone produced during the second trimester in humans and late gestation in rodents contributes to the differences but we did not know how testosterone has these effects" said Dr. McCarthy.

Jonathan Van Ryzin, PhD, a Postdoctoral Fellow, was lead author on this research conducted in Dr. McCarthy's lab.

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