Which of the following techniques allow scientists to observe the activity of parts of the brain without doing any damage at all?
A)EEG
B)fMRI
C)PET scan
D)all of these

Question

Quizplus · Accepted Answer

All three techniques (EEG, fMRI, and PET scan) allow scientists to observe the activity of parts of the brain without doing any damage. EEG measures the electrical activity of the brain through sensors placed on the scalp, fMRI measures changes in blood flow to different areas of the brain, and PET scans use radioactive tracers to track the usage of glucose and oxygen by different parts of the brain.

Which of the Following Techniques Allow Scientists to Observe the Activity