CU Psychology and Neuroscience聽Professor and Director of the Institute for Behavioral Genetics ()听John Hewitt聽(Behavioral Genetics) was聽in the news for being a co-principal investigator聽on a grant to study the large-scale long-term effects of marijuana use. The $5.5 million dollar study, funded by NIDA and the first of its kind, leverages IBG's expertise in聽large-scale genetic studies. Read more about the research in the 聽or the .