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In my last post I asked where the genes for psychological traits are, and argued that over the last two decades candidate gene studies have failed to identify genes that are reliably associated with complex behavioral phenotypes. In this post, I will discuss more recent whole genome methods, such as...

In this blog post, I will discuss the methodologies available for identifying genetic influences on psychological traits, why it has proved so difficult to reliably identify specific genes, despite 20 years of effort, and what this tells us about the nature of these genetic influences.