Comparing males and females at any one time point is a complicated question to make meaningful, because it is actually so ill-defined as posed,” he says. “There’s a lot of variability in individual brains. In fact, the anatomical variability is much greater than we ever realized before. So the notion that all people of the male sex have a brain that has fixed characteristics that are invariant seems less likely to me. In fact, so much less likely that I think the notion of trying to characterize parts of the brain as more male-like or more female-like actually isn’t useful.”
