Regarding PET scans, which of the following statements is FALSE?
A)PET scans provide detailed images of activity both near the surface and below the surface of the brain.
B)PET scans detect the negative ion particles emitted by weakly radioactive sodium and potassium as they are consumed by the brain.
C)PET scans show which areas of the brain are using more energy, with higher energy use corresponding with higher activity.
D)PET scans have suggested that different patterns of brain activity accompany major psychological disorders, such as depression or schizophrenia.

Question

Quizplus · Accepted Answer

PET scans detect positron emissions from a radioactive substance (often a form of glucose) injected into the body, not negative ion particles emitted by sodium and potassium. This substance is consumed by active parts of the brain, allowing the scan to show which areas are more active.

Regarding PET Scans, Which of the Following Statements Is FALSE