Professor Kamil Ugurbil is awarded the 2021 ISMAR Prize for his many novel and impactful contributions to magnetic resonance imaging. In particular, Prof. Ugurbil has played a central role in the development of functional magnetic resonance imaging (fMRI) as an essential tool in the field of neuroscience, including elucidation of fundamental mechanisms by which brain activity leads to contrast in MRI images and development of technology for MRI and fMRI at very high magnetic fields.