According to the study which will soon be published in the journal Psychiatry Research, Darth Vader was examined per the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSMV IV). Of the nine borderline personality disorder criteria, Anakin/Vader fulfilled six of them. Five are required by the DSMV IV to be diagnosed as suffering from the disorder.
From the article...
For instance, the future Darth Vader showed both impulsivity and anger management issues as an overexcited, lovelorn Jedi. He went back and forth between idealizing and devaluing Jedi mentors, such as a humorless young Obi-Wan Kenobi.So Darth Vader has issues. Geez... ya think?!? I thought that was pretty obvious, personally.
Abandonment issues also surfaced. Skywalker had a permanent fear of losing his wife, Padme Amidala, and he went so far as to betray his Jedi mentors and companions to try to prevent her death.
Two displays of dissociative episodes took place when Skywalker tried to distance himself from stressful events. The first episode took place after he slaughtered a local tribe of Tuskens responsible for his mother's death. A second episode occurred following his murderous rampage among young Jedi trainees, as he voiced paranoid thoughts about Obi-Wan Kenobi and his wife.
Lastly, any "Star Wars" fan would recognize Skywalker's identity issues and uncertainty about who he was. His fateful turn to the dark side and change of name to Darth Vader could represent the ultimate sign of such identity disturbance, the researchers said.
It's prolly just a matter of time before some enterprising psychology student hits the federal government up for a $100,000 grant to go to Gotham City and study the criminal insanity of the Joker :-P