TEDYouth is in its second year of putting together an afternoon of short talks for high school students. I’ll be joining in with a quick introduction to my favorite parasite. The event, which takes place in New York City, will be live-streamed–visit this page for more information for viewing. It will run from 1 pm to 6 pm ET. I’m scheduled to talk at 2:45.

Originally published November 16, 2012. Copyright 2012 Carl Zimmer.

In May I wrote in Discover about a major experiment in neuroscience. Ahmad Hariri, a neuroscientist at Duke, is gathering lots of data from hundreds of college students–everything from genetic markers to psychological profiles to fMRI scans. He hopes that the Duke Neurogenetics Study, as he’s dubbed it, will reveal some of the ways in which the variations in our genes influence our brain circuitry and, ultimately, our personality and behavior.

Hariri plans to collect data from over 1000 people, but he and his colleagues are already starting to analyze the hundreds of students they’ve already examined to look for emerging patterns. In the open-access journal Biology of Mood and Anxiety Disorders, they’ve just published some of their first results. While the results are, of course, preliminary, they do offer an interesting look at the future of neuroscience. Rather than pointing to some particular gene or brain region to explain some feature of human behavior, neuroscientists are learning how to find patterns that emerge from several factors working together.

Continue reading “Fear, Reward, and The Bottle: An Update to My Column on Neurogenetics”