From a researcher's point of view,the biggest drawback of using PET scans is ___,but from a participant's point of view,the biggest disadvantage of having a PET scan is that ___.
A) it doesn't provide information about brain function; it costs a lot
B) it doesn't provide information about brain structure; the results aren't available for a few weeks
C) it only provides information about white matter; it is an extremely painful procedure
D) it takes a while to detect changes in brain activity; it requires injection of a harmless radioactive substance

Question

Quizplus · Accepted Answer

From a researcher's point of view, the biggest drawback of PET scans is that it takes a while to detect changes in brain activity. However, from a participant's point of view, the biggest disadvantage of having a PET scan is that it requires injection of a harmless radioactive substance, which can be uncomfortable or anxiety-inducing for some individuals. Therefore, option D is the best choice.

From a Researcher's Point of View,the Biggest Drawback of Using