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Showing posts with label biology. Show all posts
Showing posts with label biology. Show all posts

November 16, 2014

#SfN14 Day 2: On the Origin of Sex Differences in the Brain (Theme E)

This post is part of my series on the 2014 Society for Neuroscience annual meeting. You can read other posts in this series here. I’m also live-tweeting some sessions @GainesOnBrains. Join the conversation at #SfN14.

This is what a bunch of hungry neuroscientists look
like when it's 5pm and the poster session is over.
One of my mentors likes to occasionally tease me when I bring him data: “You’ve discovered something new. Men and women are different.”

He kids, of course. Male and female brains are different in funny and fascinating ways we don’t quite understand.  My poster (which I presented this afternoon) was on gender differences in the loss of slow-wave sleep across adolescence. I just had a paper accepted (today, actually!) on gender differences in some aspects of sleep apnea. (I could actually probably build a pretty successful career on studying gender differences in sleep alone, actually. If I wanted to.)

So I was very excited to attend Dr. Margaret (Peg) McCarthy’s talk on the origin of sex differences in the brain earlier this afternoon.

Let me get two things out of the way before I begin. First of all, I really admired Dr. McCarthy, who hails from the University of Maryland School of Medicine, for how she spoke about her past and present colleagues, giving credit where credit was due to previous labmates and graduate students. You don’t realize how few people do that until someone does it explicitly.

Secondly, McCarthy covered the history of research in sex differences in the most genius way possible: a parody of The Big Bang Theory theme song. Seriously—it was golden.

The simplistic view of biological sex differences goes a little something like this: an undifferentiated group of cells destined to become the gonads will, by default, be ovaries. But it’s the influence of the Y chromosome that gives half of our population testes. In this way, too, the “female brain” is the “default brain.”