To apply to the CBN program, first choose one of the five member departments/schools- Aerospace and Mechanical Engineering, Biological Sciences, Chemistry and Biochemistry, Health and Exercise Science, or Psychology - based on the departmental affiliation of the faculty member(s) whose research interests most closely match your own. Then complete the online OU Graduate Application. When you do so, select the CBN degree code that reflects the most appropriate departmental affiliation for your interests.