In a study, researchers tested split-brain patients whose corpus callosum had been severed. Each patient fixated on a central dot while the word "KEY" was flashed to the left visual field and "RING" to the right visual field. When asked to verbally report what they saw, patients said "RING," but when asked to use their left hand to select an object behind a screen, they chose a key.
The patients' verbal report of "RING" most directly reflects which neuroanatomical fact?
- Acheck_circle
The left hemisphere processes language and received the right visual field input
- B
The right hemisphere controls speech and received the left visual field input
- C
Both hemispheres process language equally in split-brain patients
- D
The corpus callosum transmitted only verbal information after surgery
Explanation
Information from the right visual field projects to the left hemisphere, where speech production (Broca's area) typically resides, so patients verbalize what their left hemisphere "sees."