IF YOU thought you knew your hand… like the back of your hand, you could be disappointed. Our mental image of the size and position of our hands seems not to match with reality.
Instead, our brains have inner representations that perceive the hand as wider than it really is, and with stubbier fingers.
Matthew Longo and Patrick Haggard of University College London asked volunteers to point to the tips and bases of the fingers of one hand while it was hidden beneath a board. The researchers used an overhead camera to record the guessed positions, then compared these…
