Thursday, March 03, 2005

Male aggression and the finger

Men are born aggressive:

Hurd and his graduate student Allison Bailey have shown that a man's index finger length relative to ring finger length can predict how inclined that man is to be physically aggressive. Women do not show a similar effect.

A psychologist at the University of Alberta, Hurd said that it has been known for more than a century that the length of the index finger relative to the ring finger differs between men and women. More recently, researchers have found a direct correlation between finger lengths and the amount of testosterone that a fetus is exposed to in the womb. The shorter the index finger relative to the ring finger, the higher the amount of prenatal testosterone, and--as Hurd and Bailey have now shown--the more likely he will be physically aggressive throughout his life.

"More than anything, I think the findings reinforce and underline that a large part of our personalities and our traits are determined while we're still in the womb," said Hurd.

Strangely, the length of the middle finger has no effect on male aggression.

In the news:

You can tell the guy's traits -- without lifting a finger

Your fingers predict your aggressiveness

Finger Length Predicts Agression in Men

Digit ratio: Finger length is related to physical aggression

Finger length can predict physically aggressive personalities

Can Finger Length Predict Who Is Aggressive?

Around the Blogosphere:

Finger length predicts physically aggressive personalities

Science Giving the Finger

Finger Length Predicts Physically Aggressive Personalities

Give 'Em The Finger

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