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Psychology · Chapter 3

The Split Brain

Each eye sends what is to the left of where you look to the right hemisphere, and what is to the right to the left hemisphere. Normally the corpus callosum shares it between the two halves. In this experiment, based on the studies of Roger Sperry and Michael Gazzaniga, you can cut that bridge. Flash a picture to one side, choose how the person answers, and see which half of the brain can respond.

The experiment

Set up a trialchoose the options, then press Flash
Corpus callosum
Picture to flash
Flash it in the
How should the person answer?
The person stares at the dot in the middle of the screen. The picture will flash for a split second, too fast to move the eyes.

Your trials

BridgeSideAnswer byResult
Try to find the one pattern where the person cannot say what they saw but their left hand still picks the right object. Why does it happen?