Jonathan R. Polimeni, Ph.D is an Assistant Professor in Radiology at Harvard Medical School, Associate Investigator at the Massachusetts General Hospital, Affiliated Faculty in the Division of Health Sciences and Technology at the Massachusetts Institute of Technology, and Director of Ultrahigh-Field Imaging at the Athinoula A. Martinos Center for Biomedical Imaging. His graduate training was in electrical engineering and computational neuroscience, and his postdoctoral training was in MRI physics and fMRI acquisition. He leads the High-Resolution and Ultra-High-Field Functional Imaging Laboratory within the MR Physics and Instrumentation Group at the Martinos Center. His laboratory focuses on developing new technologies for high-resolution fMRI, on modeling how the brain's vascular anatomy and physiology shape the fMRI signals, and on studying of the functional architecture of the human visual cortex at the level of cortical columns and layers. He is currently the principal investigator on several NIH grants, including a multi-institutional project funded by the BRAIN Initiative on understanding the relationship of human fMRI data to the underlying neuronal activity.