Definitions, assessment, and advances in psychological and neuroscientific research
Psychopathy and Antisocial Personality Disorder (ASPD) are two constructs with partially overlapping features describe people whose personality traits and behavior patterns markedly interfere with long-term positive interpersonal relationships. The traits and behavior patterns are on a continuum such that some may operate on the margins of socially acceptable behavior; however, those with more extreme patterns are commonly found among prison populations (Sutton, 2026, November 9).
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Conceptual Differences: Psychopathy and ASPD
Both terms, psychopathy and Antisocial Personality Disorder, have been revised over the past four decades. Based on assessment items, most people with high psychopathy scores meet diagnostic criteria for ASPD; however, many people who are diagnosed with ASPD do not meet the narrower definition of psychopathy (see for example, Hare & Neumann, 2009).
Psychopathy
Psychopathy is the older term for adults with antisocial behavior patterns and personality traits. People high in psychopathic traits appear with many of the following characteristics:
Superficial charm
Grandiose sense of self-worth, brags often
Lies often and easily manipulates others
Lack of empathy, callous, uncaring and emotionally shallow
Little guilt or remorse after hurting others or breaking rules
Irresponsible, no follow through on plans or promises
Impulsive and risky behavior
Some are violent
A highly readable book on psychopaths is Kevin Dutton's book, The Wisdom of Psychopaths {For a review, see Sutton, 2014).
Two Psychopathy Constructs
Psychopathy as measured by the PCL-R (see below) organises psychopathic traits into two overarching dimensions. Factor 1: Interpersonal/Affective reflects the core emotional and interpersonal features of psychopathy, including deficits in empathy, remorse, and emotional responsiveness. Factor 2: Social Deviance reflects a persistent pattern of impulsive, irresponsible, and antisocial behaviour, characterised by difficulties with behavioural regulation and adherence to social norms. Following is a more detailed look at the two factors.
Factor 1: Interpersonal/Affective Traits
Factor 1 reflects the core emotional and interpersonal characteristics of psychopathy. Individuals who score highly on this factor often appear socially confident, emotionally detached, and skilled at influencing others.
• Superficial charm and glibness: Appearing articulate, engaging, and socially skilled, often in ways that may be persuasive but insincere.
• Grandiosity and inflated self-worth: Possessing an exaggerated sense of importance, ability, or entitlement.
• Pathological lying and manipulation: Using deceit and manipulation to influence, exploit, or gain advantage over others.
• Lack of remorse or guilt: Showing little concern, regret, or emotional distress after harming others or violating social norms.
• Callousness and lack of empathy: Demonstrating limited concern for the feelings, needs, or suffering of others.
• Shallow affect: Displaying emotions that appear superficial, short-lived, or lacking in depth.
• Failure to accept responsibility: Tending to minimise, justify, or externalise blame for one's actions and their consequences.
Factor 2: Lifestyle/Antisocial Features
Factor 2 reflects the behavioural and lifestyle dimensions of psychopathy. It is characterised by impulsivity, poor self-regulation, and a persistent pattern of socially irresponsible or antisocial behaviour.
• Impulsivity: Acting on immediate desires or opportunities without adequately considering potential consequences.
• Need for stimulation: Seeking excitement, novelty, or risk and experiencing boredom with routine activities.
• Irresponsibility: Repeatedly failing to meet work, financial, family, or personal obligations.
• Poor behavioural controls: Demonstrating difficulty managing frustration, anger, or impulsive reactions.
• Lack of realistic long-term goals: Adopting an unstable or poorly planned approach to life, with limited commitment to future objectives.
• Juvenile delinquency and criminal versatility: Exhibiting early behavioural problems and engaging in a range of rule-breaking or unlawful activities.
• Revocation of conditional release: Having a history of violating conditions of supervision, release, or other behavioural expectations, reflecting ongoing difficulties conforming to social and legal standards.
Together, these two dimensions capture both the personality characteristics and behavioural manifestations of psychopathy, providing a comprehensive framework for understanding the construct.
Psychopathy Through the SCOPES Lens
The six-factor SCOPES model is an evidence-based framework used for assessment and treatment planning Sutton, 2026).
SELF
Individuals with psychopathic traits often present with an inflated or grandiose self-concept. They may view themselves as superior, unusually capable, or deserving of special treatment. Self-esteem is often outwardly high and confidence can appear exceptional, although this confidence may exceed actual abilities. Personal values and spirituality, when present, may be interpreted primarily through the lens of self-interest rather than concern for others.
COGNITION
Cognitive functioning is often characterised by strategic thinking, persuasion, and a focus on personal goals. Decision-making may prioritise immediate gains over long-term consequences, particularly when impulsive traits are prominent. Research suggests that many individuals with psychopathic traits possess intact cognitive empathy, meaning they can understand what others are thinking and feeling, even when they lack emotional concern for those experiences.
OBSERVABLE BEHAVIOUR
Observable behaviour frequently reflects manipulation, deception, impulsivity, irresponsibility, and disregard for social norms. Some individuals exhibit a calculated and controlled interpersonal style, whereas others display more erratic and antisocial behaviour. Habitual rule-breaking, risk-taking, and exploitative behaviour may be evident in everyday interactions.
PHYSICAL
The physical dimension may reflect underlying neurobiological differences associated with psychopathy, particularly in brain systems involved in emotional processing, fear responses, and behavioural regulation. Many individuals demonstrate high sensation-seeking behaviour, a greater tolerance for risk, and a need for stimulation. Sleep, fitness, and physical health are not defining features but may be affected by broader lifestyle patterns.
EMOTION
The emotional domain is often the most distinctive aspect of psychopathy. Individuals may exhibit limited empathy, remorse, guilt, and emotional depth. Emotional experiences can appear shallow, short-lived, or disconnected from the suffering of others. Fear and anxiety responses may be diminished in some individuals, contributing to greater risk-taking and reduced sensitivity to punishment.
SOCIAL CONTEXTS
Psychopathic traits may influence functioning across multiple life contexts, including work, family, and romantic relationships. In occupational settings, individuals may appear charismatic, confident, and persuasive, sometimes rising to positions of authority. However, relationships with supervisors, colleagues, employees, friends, and romantic partners may be marked by manipulation, exploitation, conflict, or a lack of genuine emotional intimacy.
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Three Psychopathy Constructs Model
Patrick presents a triarchic model of psychopathy and developed a scale to measure these three constructs (2009, 2015) as follows:
Disinhibition: impulsiveness, irresponsibility, difficulty regulating emotions and behavior, mistrust
Meanness: low empathy, contempt toward others, inability to bond with others, predatory exploitive Ness
Boldness: dominance, social assurance, emotional resilience, adventurousness
Antisocial Personality Disorder (ASPD)
ASPD is the current diagnostic term in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5 TR; American Psychiatric Association, 2022), which is a publication of the American Psychiatric Association. The term first appeared in the third edition of the manual published in 1980, which emphasized observable behavior patterns in diagnoses (Black, 2025). Features of ASPD include a persistent pattern of:
Disregarding the rights of others
Deceitfulness and manipulation
Impulsivity
Aggressiveness or irritability
Reckless behaviour
Lack of responsibility
Limited remorse after harming others
Conduct Disorder
Conduct Disorder is the DSM term for youth who present with antisocial behavior patterns. Those with limited prosocial tendencies are referred to as having CU (callous unemotional traits. Researchers find those with CU are low in responding to other’s distress and present with more severe and planned aggression. As adults they continue to show aggressive and antisocial behavior. The risk for adult psychopathy focuses on the following behavior patterns:
Lacking remorse, doesn’t feel bad or guilty after wrongdoing
Low empathy of concern for others
Appears to feel superior to other people
Poor relationships with peers
Doesn’t seem to care about school
Some involved in crime
Sociopathy
Some writers (e.g., Stout, 2005) use the term sociopathy to refer to behavior patterns with features similar to psychopathy and ASPD. Because psychopathy and ASPD are the more common terms in clinical and scientific literature, I will not discuss the history of the sociopathy concept here.
Neuropsychology
The amygdala is smaller in those high in psychopathy traits. The amygdala is involved in processing emotional responses.
Adults with ASPD demonstrate problems with executive functioning—reasoning, planning, and inhibition. The pattern in those with high psychopathy characteristics have difficulty moving beyond the initial focus of their attention=ion when processing information.
Heritability
There is some evidence supporting heritability as well as the contribution of positive parenting to reduce early antisocial behavior. See Hyde et al. (2016).
Treatment
There has been limited success in the treatment of children or adults. Psychiatrists may treat comorbid conditions with medication.
Assessment
The Hare Psychopathy Checklist-Revised (PCL-R) is the most widely accepted instrument for assessing psychopathy in adults and is often regarded as the international "gold standard" for psychopathy evaluation. The measure has demonstrated strong reliability and validity across hundreds of peer-reviewed studies conducted in clinical, community, and forensic settings. The PCL-R assesses four broad domains of psychopathic traits: interpersonal characteristics, affective deficits, lifestyle factors associated with impulsivity, and antisocial behaviour.
The instrument consists of 20 items, each rated on a three-point scale (0-2), yielding a maximum possible score of 40. In the United States, a score of 30 or higher is typically used to indicate psychopathy, whereas a cutoff score of 25 is commonly used in the United Kingdom and in some research settings.
Prevalence Data
The prevalence of psychopathy varies with the study. A look at 16 samples revealed a range of 0 to 21% in the general population. In prison settings, psychopathy rates for homicide offenders were 15.7% for men and 10.#% for women (See Sanz-Garcia et al., 2021).
Marsh reported severe psychopathy at about 1% of all people; however, psychopathy traits can be found in 30% of the general population leaving 70% without psychopathic traits. (See Abigail Marsh, 2022).
Post Author
Find chapters and essays on Substack. [ @GeoffreyWSutton ]
Select Scientists Who Study Psychopathy
Abigail Marsh at Georgetown University
Chris Patrick at Florida State University
Paul Frick at Louisiana State University
References
American Psychiatric Association. (2022). Diagnostic and statistical manual of mental disorders (5th ed., text rev.; DSM-5-TR). American Psychiatric Association Publishing.
Black, D.W. Update on Antisocial Personality Disorder. Curr Psychiatry Rep 26, 543–549 (2024). https://doi.org/10.1007/s11920-024-01528-x
Frick, P. J., Ray, J. V., Thornton, L. C., & Kahn, R. E. (2014). Can callous-unemotional traits enhance the understanding, diagnosis, and treatment of serious conduct problems in children and adolescents? A comprehensive review. Psychological bulletin, 140(1), 1–57. https://doi.org/10.1037/a0033076
Hare, R. D., & Neumann, C. S. (2009). Psychopathy: Assessment and Forensic Implications. Canadian Journal of Psychiatry, 54(12), 791-802.
Hyde, L. W., Waller, R., Trentacosta, C. J., Shaw, D. S., Neiderhiser, J. M., Ganiban, J. M., Reiss, D., & Leve, L. D. (2016). Heritable and Nonheritable Pathways to Early Callous-Unemotional Behaviors. The American journal of psychiatry, 173(9), 903–910. https://doi.org/10.1176/appi.ajp.2016.15111381
Marsh, A. (2022). Speaking of Psychology: Why psychopathy is more common than you think. American Psychological Association. https://www.apa.org/news/podcasts/speaking-of-psychology/psychopathy
Patrick, C. J., & Drislane, L. E. (2015). Triarchic Model of Psychopathy: Origins, Operationalizations, and Observed Linkages with Personality and General Psychopathology. Journal of personality, 83(6), 627–643. https://doi.org/10.1111/jopy.12119
Patrick, C. J., Fowles, D. C., & Krueger, R. F. (2009). Triarchic conceptualization of psychopathy: Developmental origins of disinhibition, boldness, and meanness. Development and Psychopathology, 21(3), 913–938. doi:10.1017/S0954579409000492
Sanz-García, A., Gesteira, C., Sanz, J., & García-Vera, M. P. (2021). Prevalence of Psychopathy in the General Adult Population: A Systematic Review and Meta-Analysis. Frontiers in psychology, 12, 661044. https://doi.org/10.3389/fpsyg.2021.661044
Stout, M. (2005). The sociopath next door. Broadway Books. [Review]
Sutton, G. W. (2014). [Review of the book The Wisdom of psychopaths: What saints,spies, and serial killers can teach us about success by Kevin Dutton]. Journal of Christianity and Psychology, 35, 281-282. ResearchGate Link Academia Link
Sutton, G. W. (2026). Flourishing in six dimensions: The SCOPES framework: A Multidimensional Continuum from Mental Distress to Human Wellbeing Sunflower. ISBN 979-8199903981
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