How could you determine whether a person has had split-brain surgery

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Split-brain surgery involves cutting the corpus callosum, which is the main pathway connecting the two halves of the brain. This surgery is done to treat severe epilepsy. The two hemispheres of the brain function independently after split-brain surgery, and this can be tested by visual identification tasks in a laboratory. For example, if an object is presented in the left visual field, which is processed by the right hemisphere, a split-brain patient may not be able to verbally identify it but can point to it with their left hand. This is because language is mostly processed in the left hemisphere of the brain, and the right hemisphere can't communicate this information to the left hemisphere. Therefore, performance on visual identification tasks is a good indicator of whether a person has had split-brain surgery.

How Could You Determine Whether a Person Has Had Split-Brain