Antisocial personality disorder (ASPD) is one of ten personality disorders mentioned in the Diagnostic and Statistical Manual. Personality disorders are enduring patterns of maladaptive behavior that deviate from cultural norms. These maladaptive behaviors impact a person's cognition, affect, interpersonal functioning, and impulse control. In the DSM personality disorders are divided into three groups A, B and C and ASPD belongs to group B. People with this disorder are among the most dramatic individuals and are characterized by a long-standing pattern of disregard for rights of others. , often crossing the line and violating these rights (Firestone et al., 2010). It is important to note that antisocial personality disorder is often referred to as psychopathy or sociopathy in popular culture. However, neither psychopathy nor sociopathy are recognized professional labels used for diagnosis, and ASPD and psychopathy are considered two distinct disorders (Gurley, 2009). Because people diagnosed with ASPD can cause a lot of harm to society, there is enormous interest in studying this group, and thanks to this interest and many years of research we know much more about ASPD than about any other personality disorder ( Durand et al., 2008). Etiology Researchers today still don't know what really causes antisocial personality disorder. Although there are many theories about possible causes and most professionals use a biopsychosocial model of causation. According to this model, the causes of ASPD are probably a combination of biological genetic factors, social factors and psychological factors. Examples of social factors include how a person interacts in their early developmental… middle of paper… disorder (Duggan, 2009). Conclusion Individuals with antisocial personality disorder often lack empathy and tend to be callous, cynical. and disrespectful of the feelings, rights and suffering of others. They may have an inflated and arrogant self-evaluation, feeling that ordinary work is beneath them, and they may be overly opinionated, self-confident, or arrogant. They may display a casual, superficial charm and be verbally charismatic using technical terms that might impress someone unfamiliar with the topic. Their behavior is not easily modified by adverse experiences, including punishment, and there is a low tolerance for frustration and a low threshold for discharging aggression, including violence. They also have a tendency to blame others or offer plausible rationalizations for their behavior bringing them into conflict with society.