Damon is injected with a radioactive substance and then lies on an apparatus with a scanner that emits fine streams of X-rays, which detect increased blood flow and oxygen metabolism in areas of the brain as Damon processes particular stimuli. Damon's brain functioning is being measured using
A) an electroencephalogram (EEG).
B) event-related potentials (ERPs).
C) functional magnetic resonance imaging (fMRI).
D) position emission tomography (PET).

Question

Quizplus · Accepted Answer

Position emission tomography (PET) involves injecting a radioactive substance and tracking its movement in the brain using special scanners, which allows for measurement of blood flow and oxygen metabolism in different areas of the brain in response to specific stimuli. This description matches the scenario given in the question. Electroencephalography (EEG) measures electrical activity in the brain and is not typically used for measuring blood flow or oxygen metabolism. Event-related potentials (ERPs) also measure electrical activity and are typically used to assess how the brain processes sensory information. Functional magnetic resonance imaging (fMRI) uses magnetic fields to measure changes in blood flow in response to specific tasks, but the scenario in the question specifically mentions the use of a radioactive substance, which is not typically used in fMRI studies.

Damon Is Injected with a Radioactive Substance and Then Lies