The word banana appears on the left screen, and the split-brain patient is told to use her left hand to select the object named on the screen. will she be able to fetch the banana?

Question

Aniyah

Physics

3 July, 18:31

The word banana appears on the left screen, and the split-brain patient is told to use her left hand to select the object named on the screen. will she be able to fetch the banana?

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Werner · Answer 1

No. She will not be able to fetch the banana.

This is because the word 'banana' flashed on the left screen is viewed by her left eye and subsequently processed in her right brain hemisphere. The patient will not be able to make sense of the word 'banana' because language centers in the brain are not in the right hemisphere, and the information (the word 'banana') cannot be relayed to the language processing centers in the left hemisphere of the brain due to a severed corpus callosum (or having a split-brain). Therefore, when asked to use her left hand to select the object named on the screen, the patient will not be able to fetch the banana.