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A Researcher Is Using a Strong Magnet to Track Blood-Oxygen

Question 172

Multiple Choice

A researcher is using a strong magnet to track blood-oxygen changes in participants' brains as they complete decision-making tasks. The researcher is using _____ to examine the brain's activity.


A) computerized axial tomography (CAT) .
B) positron emission tomography (PET) .
C) electroencephalogram (EEG) .
D) functional magnetic resonance imaging (fMRI) .

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