Quiet: The Power of Introverts in a World That Can't Stop Talking

by Susan Cain

Reward sensitivity on overdrive gets people into all kinds of trouble. We can get so excited by the prospect of juicy prizes, like winning big in the stock market, that we take outsized risks and ignore obvious warning signals.

Financial history is full of examples of players accelerating when they should be braking.

Dorn has observed that her extroverted clients are more likely to be highly reward-sensitive, while the introverts are more likely to pay attention to warning signals.