SAN FRANCISCO
As someone who studies brain development and regeneration, Stanford University neurobiologist Dr. Ben Barres feels qualified to comment on whether nature or nurture explains the shortage of women working in the sciences.
But it wasn’t just his medical degree from Dartmouth University, his doctorate from Harvard University and his research that inspired him to write an article blaming the persistent gender gap on institutional bias.
Rather, it was that for most of his academic life, the 50-year-old professor who now wears a beard was once known as Dr. Barbara Barres, a woman who excelled in math and science.
“I have this perspective,” says Barres, who switched sexes when he started taking hormones in 1997. “I’ve lived in the shoes of a woman and I’ve lived in the shoes of a man. It’s caused me to reflect on the barriers women face.”
Barres’ opinion piece, published in Thursday’s issue of the journal Nature, was a response to the debate former Harvard President Lawrence Summers reignited last year when he said innate sexual differences might explain why comparatively few women excelled in scientific careers.
Summers’ clashes with faculty — including over women in science — led to his resignation, though not before he committed $50 million on child care and other initiatives to help advance the careers of women and minority employees.
Even so, Barres thinks a meaningful discussion of what he calls the “Larry Summers Hypothesis” ended too soon, leaving missed opportunities and a bad message for young female scientists.
In his article, Barres offers several personal anecdotes from both sides of the gender divide. He contends that prejudice plays a much larger role than genes in preventing women from reaching their potential on university campuses and in government laboratories.
The incident that rankles him most dates from his undergraduate days at the Massachusetts Institute of Technology, where, as a young woman in a class dominated by men, he was the only student to solve a complicated math problem. The professor responded that a boyfriend must have done the work for her, according to Barres.

