If a doctor puts an object in a person's right visual field and asked the person to name the object and point to it, then puts the same object in their left visual field and asks the person to name the object and point to it, the doctor may be checking for:

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Quizplus · Accepted Answer

The doctor is likely checking for hemispheric lateralization, which involves the specialization of one hemisphere of the brain in certain functions. The right visual field is processed by the left hemisphere, which is typically responsible for language, so the ability to name the object may be tested. The left visual field is processed by the right hemisphere, which may not be as involved in language, so differences in response could indicate lateralization.

If a Doctor Puts an Object in a Person's Right