July 20, 2005

Brain Damaged Investors Do Better

This was a fascinating piece I saw in the WSJ:

WSJ.com - Lessons From The Brain-Damaged Investor

The 15 brain-damaged participants that were the focus of the study had normal IQs, and the areas of their brains responsible for logic and cognitive reasoning were intact. But they had lesions in the region of the brain that controls emotions, which inhibited their ability to experience basic feelings such as fear or anxiety. The lesions were due to a range of causes, including stroke and disease, but they impaired the participants’ emotional functioning in a similar manner.

The study suggests the participants’ lack of emotional responsiveness actually gave them an advantage when they played a simple investment game. The emotionally impaired players were more willing to take gambles that had high payoffs because they lacked fear. Players with undamaged brain wiring, however, were more cautious and reactive during the game, and wound up with less money at the end.

[snip]

“There was no such thing as stock in the Pleistocene era,” says George Loewenstein, a professor of economics at Carnegie Mellon University, and a co-author of the study. “But human beings are pathologically risk averse. A lot of the mechanisms that drive our emotions aren’t really that well adapted to modern life.”

Wow that’s fascinating. I’m going to go find me some penny stocks to invest in!! ALL IN!

Posted by: dtc @ 10:55 pm


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