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300 milliseconds from hand to head

Experiment finds “rubber hand illusion” fails to work with too much delay

The hand is quicker than the eye, but only by about 300 milliseconds. That’s the time window in which the mind can be tricked into incorrectly linking something it sees with something it feels, Sotaro Shimada of Meiji University in Kawasaki, Japan, and colleagues report July 9 in PLoS ONE. The new work, which uses the “rubber hand illusion,” could help researchers better understand how and where the brain processes sensory information.

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