John M. Coates is a neuroscientist[1] at the University of Cambridge[2] and former Wall Street trader for Goldman Sachs, Merrill Lynch and Deutsche Bank.
Coates' research focuses on the hormonal basis of financial decision making,[3] inspired by his own experiences trading. He describes how men trading "display what may be called [the] classical clinical symptoms of mania. They were delusional, they were euphoric, they were over confident, they had racing thoughts [and a] diminished need for sleep."[4][5]