A researcher wants to obtain a "movie" of changes in the activity of the brain using images from different time periods. Which of these would be the BEST choice for this researcher?
A) electroencephalography (EEG)
B) computed tomography (CT)
C) positron emission tomography (PET)
D) functional magnetic resonance imaging (fMRI)

Question

A researcher wants to obtain a "movie" of changes in the activity of the brain using images from different time periods. Which of these would be the BEST choice for this researcher?
A) electroencephalography (EEG)
B) computed tomography (CT)
C) positron emission tomography (PET) 
D) functional magnetic resonance imaging (fMRI)

Quizplus · Accepted Answer

fMRI is the best choice for obtaining a "movie" of changes in the activity of the brain using images from different time periods. It provides a high-resolution image of brain activity over time by measuring changes in blood flow and oxygenation levels in different brain regions. This allows researchers to track activity over time and observe how the brain responds to different stimuli or tasks. EEG and CT do not provide the same level of detail or dynamic information about brain activity, and PET is better suited for measuring changes in metabolism rather than activity over time.

A Researcher Wants to Obtain a "Movie" of Changes in the Activity