Bonnie nagelDr. Nagel might be available as a mentor for 2015-2016. Profile. Bonnie Nagel is an Associate Professor in the Departments of Psychiatry and Behavioral . Bonnie J. Nagel, Ph.D. - NCANDA OHSU Principal Investigator. Dr. Nagel is an Associate Professor of Psychiatry and Behavioral Neuroscience at Oregon . Nov 14, 2013 . An astounding presentation by Bonnie J. Nagel, Ph.D. that explores the brain function of TEENren and teenagers.