Genetic predisposition + abuse/trauma in childhood => antisocial personality disorder (AsPD).
AsPD, by the way, is the DSM term for the more causal terms "psychopathy" (more physiological/genetic than environmental) and "sociopathy" (more environmental).
By the way, psychopathy isn't just lack of empathy (as sociopaths, narcissists, and others also have such deficiency). It's also the lack of conscience that contributes to the definition of psychopathy. Sociopaths tend to still have some semblance of conscience.
AsPD, by the way, is the DSM term for the more causal terms "psychopathy" (more physiological/genetic than environmental) and "sociopathy" (more environmental).
By the way, psychopathy isn't just lack of empathy (as sociopaths, narcissists, and others also have such deficiency). It's also the lack of conscience that contributes to the definition of psychopathy. Sociopaths tend to still have some semblance of conscience.
