I need to identify the defense mechanism most used by patients with bipolar mania, and I'm having a hard time. If I was doing this for PSTD I could easily see how the defense mechanism may be repression, regression, isolation, or suppression, but I can't figure out how any of the defense mechanisms can be applied to manic individuals in general. Maybe for those who have experience with these patients, a certain defense mecahnism comes right to mind. ??? Thanks in advance for your help.