From the Prophecy Sciences blog:
Not-so-great memory— With so many things competing for our attention throughout the day, it’s a challenge for anyone to keep the important things in our working memory and the unimportant things out. VCs appear to have even more difficulty with this filtering, with our data showing a 10% deficit in working memory compared to everyone else.
Risk Seeking— Not everyone has an appetite for risk, preferring instead to go for small, safe wins. The VCs in our dataset had no trouble going for the big, uncertain gambles, making risky choices 67% more often than others we tested.
Prophecy Sciences is a YC company run by one of the smartest guys I knew at Stanford— he's a PhD/postdoc in Neuroscience and they're building technology for short sit-down cognitive tests that can tell a whole lot about people. It's already in use at hedge funds and professional sports teams to help build teams that work together better.