Casey Has Suffered Carbon Monoxide Poisoning That Has Resulted in Extensive

Multiple Choice

Casey has suffered carbon monoxide poisoning that has resulted in extensive damage to her hippocampus.Researchers from a local university want to study her abilities in order to find out more about the function of the hippocampus.What is a disadvantage of using this technique to learn about brain function?

A) The location of brain activity cannot be pinpointed precisely.
B) It only tells us when a brain area is needed, not what the brain area does.
C) It is impossible to establish cause and effect.
D) It requires that the patients consume a radioactive substance.