Behavioral and Brain Sciences

Open Peer Commentary
Fitch & Denenberg: Sexual differentiation of the brain

Parallel or serial processes in sexual differentiation?

Christina L. Williams a1 and Noah J. Sandstrom a1
a1 Department of Psychology: Experimental, Duke University, Durham, NC 27708


We argue that estrogen feminization of the brain is the result of a series of events initiated by differential androgen exposure. There is no need to postulate a feminizing process parallel to androgen-induced masculinization to explain the findings.