How do we see, hear, and think? More specifically, how can we study living people to understand how the brain sees, hears, and thinks? Recently, magnetic resonance imaging (MRI), a powerful anatomical imaging technique widely used for clinical diagnosis, was further developed into a tool for probing brain function. By sensitizing magnetic resonance images to the changes in blood oxygenation that occur when regions of the brain are highly active, we can make "movies" that reveal the brain at work. Dr. Pekar works on the development and application of this MRI technology. Dr. Pekar is a biophysicist who uses a variety of magnetic resonance techniques to study brain physiology and function. Dr. Pekar serves as Manager of the F.M. Kirby Research Center for Functional Brain Imaging, a research resource where imaging scientists and neuroscientists collaborate to study brain function using unique state-of-the-art techniques in a safe comfortable environment, to further develop such techniques, and to provide training and education. Dr. Pekar works with center staff to serve the center's users and to keep the center on the leading edge of technology.