psychopathy

Dementia usually means memory problems, but frontotemporal dementia with a loss of ability to empathize with other people can resemble other conditions with empathy problems in psychiatry, such as psychopathy.

No one screaming lies, demonizing huge swaths of Americans as "enemies" or "poison," or running through the behavioral checklist for psychopathy and narcissism.

We can plainly see Trump’s narcissism and psychopathy grow more malignant as the film progresses.

He described himself as having been “a grinning, brooding young criminal psychopath in defiantly willing bondage to his psychopathy.”

"As a clinician I have to spend a good chunk of time with a person to be able to adequately discern between narcissism, sociopathy and psychopathy," Durvasula said.