Experiments show that people consistently underestimate the weight of their own hands – a perceptual quirk that could be important for designing prosthetics
People think their hands are about half as heavy as they really are.
Cadete and her colleagues tested 20 adults who were each told to relax their left arm on a pillar resembling an armrest. Initially, each person let their left hand hang freely, but then it was given support and a weight was attached to their left wrist. Throughout the experiment, the participants couldn’t see their hands or the weights because they were covered by a screen.
The team is unsure why this was the case, but Cadete suspects this underestimation makes movement less taxing. “Our hands may feel lighter [than they actually are] so that we find it easier to move more freely in the world,” she says.Get the most essential health and fitness news in your inbox every Saturday.would affect a person’s perception of their hand weight.
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