"Psychological theories attribute criminal behavior to individual differences resulting from early psychodynamic development, information processing and cognition, and conditioning processes. Psychological theories of crime are micro-level theories that locate the source of criminality within the individual, with the idea that crime is a symptom of an individual’s internal psychological condition. Much of the psychological research on criminal behavior has focused on the relationships between personality, mental disorder, and crime. Research at the intersection of psychology and criminology has emphasized integration of cognitive, behavioral, and psychodynamic perspectives in the development of functional concepts of psychopathy and criminality (Meloy, 1988; Walters, 1990). Because crime is a social construct, psychological research on criminal behavior involves study of internal psychological conditions that produce behaviors associated with crime such as antisocial behavior, psychopathy, aggression, and impulsivity. From this perspective, “crime is a behavioral symptom that is a manifestation of an internal psychological condition.” Recent research has focused to a large extent on the role of psychopathy in criminal behavior and the predictive utility of the construct in assessing dangerousness and future violence."