The clothes make the man

From Mind Games: Sometimes a White Coat Isn’t Just a White Coat by Sandra Blakeslee.

Stipulated: Small sample size, college students, psychological research. But that said, interesting to see old adages ("the clothes make the man" first cited in the 1500s) reinforced by modern research.

If you wear a white coat that you believe belongs to a doctor, your ability to pay attention increases sharply. But if you wear the same white coat believing it belongs to a painter, you will show no such improvement.

So scientists report after studying a phenomenon they call enclothed cognition: the effects of clothing on cognitive processes.

It is not enough to see a doctor’s coat hanging in your doorway, said Adam D. Galinsky, a professor at the Kellogg School of Management at Northwestern University, who led the study. The effect occurs only if you actually wear the coat and know its symbolic meaning — that physicians tend to be careful, rigorous and good at paying attention.

[snip]

But the deeper question, the researchers said, is whether the clothing you wear affects your psychological processes. Does your outfit alter how you approach and interact with the world? So Dr. Galinsky and his colleague Hajo Adam conducted three experiments in which the clothes did not vary but their symbolic meaning was manipulated.

In the first, 58 undergraduates were randomly assigned to wear a white lab coat or street clothes. Then they were given a test for selective attention based on their ability to notice incongruities, as when the word “red” appears in the color green. Those who wore the white lab coats made about half as many errors on incongruent trials as those who wore regular clothes.

In the second experiment, 74 students were randomly assigned to one of three options: wearing a doctor’s coat, wearing a painter’s coat or seeing a doctor’s coat. Then they were given a test for sustained attention. They had to look at two very similar pictures side by side on a screen and spot four minor differences, writing them down as quickly as possible.

Those who wore the doctor’s coat, which was identical to the painter’s coat, found more differences. They had acquired heightened attention. Those who wore the painter’s coat or were primed with merely seeing the doctor’s coat found fewer differences between the images.