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brain scanning: Media

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positron emission tomography scan
Positron emission tomography (PET) scan of the human brain.
Jens Langner
brain scanning; magnetic resonance imaging (MRI)
Magnetic resonance imaging (MRI) is used to detect certain types of intracranial...
Β© Hemera/Thinkstock
The sleeping brain visualized by positron emission tomography
Metabolic activity in the brain while awake and during sleep can be tracked according...
Β© Hank Morgan/Science Source