A patient suffers damage to an area at the rear of her brain following a stroke. She subsequently has significant difficulty processing and interpreting visual information.
Which lobe of the cerebral cortex was most likely damaged?
Frontal lobe
Temporal lobe
Parietal lobe
Occipital lobe
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A neuroscientist is studying a patient whose corpus callosum was surgically severed to treat severe epilepsy. When the word "APPLE" is flashed only to the patient's left visual field, the patient cannot say what they saw but can pick out an apple with their left hand from a group of objects hidden behind a screen.
Which of the following best explains this pattern of results?
Language processing is predominantly located in the left hemisphere, which did not receive the visual input
The occipital lobe was damaged during surgery, impairing verbal identification of objects
The right hemisphere controls all voluntary hand movements
The corpus callosum normally suppresses language production in split-brain patients
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After suffering a stroke that damaged the language area in his left hemisphere, a patient initially loses the ability to speak. Over the following 18 months, with intensive speech therapy, he regains much of his speech. Brain imaging shows that adjacent areas of the left hemisphere and some right hemisphere regions have begun handling language functions.
Which of the following concepts best explains this recovery?
Neurogenesis
The reflex arc
Hemispheric specialization
Brain plasticity
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