How fMRI should be used

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FMRI under the Microscope: An interview with MRI Physicist PractiCal fMRI

Since its development in the early 1990’s, functional magnetic resonance imaging (fMRI) has grown in popularity to become one of the most commonly used techniques to image activity in the human brain. This rapid growth is due largely to several advantages that set it apart from other neuroimaging tools, including superb spatial resolution, non-invasiveness, safety and minimal preparation time. However, it also has several critical limitations, including relatively poor temporal resolution, susceptibility to various signal artifacts and relying on a signal that only roughly approximates the activity of neurons. Although the development of fMRI has considerably advanced our understanding of human cognitive function, its powers have been misinterpreted to suggest that fMRI can be used to “read minds”, that particular concepts or functions are located in specific brain regions, or that a particular activity pattern causes some behavior. ….[READ]

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