Brain-imaging techniques, such as PET scans, MRI, and fMRI, provide extremely accurate and detailed images of the brain and have virtually no known limitations.

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While brain-imaging techniques have greatly advanced our understanding of the brain, they do have limitations. For example, PET scans involve injecting a small amount of radioactive material into the body, which limits the frequency with which they can be done. MRI and fMRI can be affected by movement or metal in the body, which can distort the images. Additionally, while these techniques provide detailed structural or functional images of the brain, they do not necessarily tell us how the brain works or why certain patterns of brain activity occur.

Brain-Imaging Techniques, Such as PET Scans, MRI, and FMRI, Provide