Nematode worms may not be from Mars or Venus, but they do have sex-specific circuits in their brains that cause the males and females to act differently. According to new research published in Nature, scientists have determined how these sexually dimorphic (occurring in either males or females) connections arise in the worm nervous system. The research was funded by the NIH’s National Institute of Neurological Disorders and Stroke (NINDS).

“For decades, there has been little focus on the impact of sex on many areas of biomedical research,” said Coryse St. Hillaire-Clarke, Ph.D., program officer on this NINDS project. “This study helps us understand how sex can influence brain connectivity.

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