When you think you see a face in the clouds or in the moon, you may wonder why it never seems to be upside down. It turns out the answer to this seemingly minor detail is that your brain has been wired not to. Using tests of visual perception and functional magnetic resonance imaging (fMRI), Lars Strother and colleagues at The University of Western Ontario's world-renowned Centre for Brain & Mind recently measured activity in two regions of the brain well known for facial recognition and found they were highly sensitive to the orientation of people's faces...




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