February 21, 2022

Some people get their brain split as a treatment for epilepsy. If you show the word key’ to their left visual field and the word ring’ to their right visual field, and ask them what they saw, they will say ring’ because only the left hemisphere (which processes the right visual field) can talk. If you asked them to select an object out of a bag with their left hand (controlled by the right hemisphere which processes the left visual field) that matches what they saw, they will ignore the ring and choose a key.

Source: https://after-on.com/episodes/026


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