The prevalence of fMRI in cognitive neuroscience research is clear, but the overall impact of the associated research in the broader scope of our scientific community, and of society, is less obvious. The first reports of fMRI garnered huge interest in many areas, giving rise to a wide range of applications and technical developments over the past 20 years. Using five primary areas, i.e. scientific impact, clinical practice, cognitive neuroscience, mental illness, and society-this essay examines the question: Has fMRI changed the world?
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