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With the advent of magnetic resonance imaging (MRI), and in particular in the 1990s with the introduction of functional MRI (fMRI) – a neuroimaging tool that measures hemodynamic responses related to neural activity – much has been done for the protection of the human subject. As imagers, we worry since the early days about magnet safety, and in every MRI suite there are in place several measures to protect individuals from physical injury, like screening for metal implants or the use of hearing protection (Shellock and Spinazzi, 2008). MRI-safe pacemakers are being developed (Mitka, 2009), while the European Union is trying to set a directive limiting the exposure to electromagnetic fields even of MRI personnel. There are though many other issues, concerning brain imaging both for clinical and research purposes, that have been much less or much later explored (Seixas and Ayres Basto, 2008), namely recruitment of vulnerable groups, informed consent, incidental findings, limitations of the techniques, interpretation and validity of results, confidentiality and privacy, applications outside the hospital or laboratory, or public communication of research results or imaging applications.

Neuroimaging: just a collection of brain image files?