sentences:  Together with MIT graduate student Daisy Chien, and colleagues Richard Buxton, Tom Brady and Bruce Rosen he was one of the earliest entrants in the field of brain diffusion imaging, which itself was opened by the pioneering experiments of Denis Le Bihan.In a conference paper in 1988 at the Society for Magnetic Resonance in Medicine the MGH group was the first to demonstrate diffusion anisotropy in the human brain, stating, "... "we observed different diffusion patterns parallel and perpendicular to the midline of the brain, which was repeatable, and depended only on the direction of diffusion encoding gradient relative to the brain, regardless of which physical gradient was used".