A noninvasive technique that produces detailed images of thebrain using electromagnetic signals generated by the brain inresponse to magnetic fields is called magnetic resonanceimaging (MRI).

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This statement is true. MRI uses magnetic fields and radio waves to produce detailed images of the brain without using ionizing radiation, making it a noninvasive technique. The magnetic fields cause the protons in the body's water molecules to align and then emit electromagnetic signals, which are detected by the MRI machine and used to create images of the brain's structures and functions.

A Noninvasive Technique That Produces Detailed Images of Thebrain Using