When the Human Brain's Normal Electrical Activity Is Suddenly Altered

question 15

Multiple Choice

When the human brain's normal electrical activity is suddenly altered, a seizure can result. Seizures cause several behavioral and physical complications such as sudden mood changes, muscle spasms, or uncontrollable body shaking. Seizure impulses often start in one hemisphere of the brain and travel to the other. Which of the following surgical treatments would reduce the severity of seizures?

• A) surgically altering the hypothalamus so that the patient's biological clock has altered circadian rhythms
• B) severing the corpus callosum so that the brain has diminished ability to send messages between the two cerebral hemispheres
• C) severing the parietal lobe so that speech capabilities are diminished
• D) stimulating the cerebrum to allow the retention of short-term memory capabilities

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