She is using neurobiology to better understand traders' behavior and also to advise traders. Here is one bit:
StockTickr: What single lesson did you learn along the way that has helped you the most in your trading?
Denise: Learn how to process your emotions in real time. so that the emotion is not “acted out” in trade entries or exits.
Here is a recent article on Denise Shull. Unlike many contemporary researchers in her field, she still has a real attachment to Freud. "Emotional intelligence" for traders is perhaps a good summary of her core message. I wonder how many professions (bloggers? no) are lucrative enough to afford paid emotional intelligence consultants.
Via Daniel Hawes, here is a piece on how length-ratios of second and fourth digits predict success among high-frequency stock traders. I can't say I'm convinced that "prenatal androgen exposure may affect a trader by sensitizing his subsequent trading performance to changes in circulating testosterone" but it's worth a read.