The disease begins with a change in personality that's often seen as volitional. Introverts become extroverts. Once-agreeable employees act rude. Formerly faithful spouses have affairs, and while they acknowledge their transgressions, they are unable to appreciate the implications.
Some end up institutionalized because their behavior looks like mental illness. Some are incarcerated when they break the law. A diagnosis of FTD led to reduced charges against a New York City physician who cut his initials into the stomach of a patient, and what could have been as many as 25 years in prison ended up as five years' probation.
http://www.latimes.com/news/local/la-me-dementia-20120210,0,5574998.story
Some end up institutionalized because their behavior looks like mental illness. Some are incarcerated when they break the law. A diagnosis of FTD led to reduced charges against a New York City physician who cut his initials into the stomach of a patient, and what could have been as many as 25 years in prison ended up as five years' probation.
http://www.latimes.com/news/local/la-me-dementia-20120210,0,5574998.story