That is, the brain scans would pick up the volunteers deciding consciously to abandon their own beliefs to fit in with the group. But if the brain scans showed heightened activity in regions associated with visual and and spacial perception, this would suggest that the group had somehow managed to change the individual's perceptions.
That was exactly what happened - the conformists showed less brain activity in the frontal, decision-making regions and more in the area of the brain associated with perception. Peer pressure, in other words, is not only unpleasant, but can actually change your view of a problem.
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