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Eysenck's Criminal Personality Theory

Theoretical Framework

The Biological Basis of Crime

Hans Eysenck’s theory, developed in the 1960s and revised in 1992, proposes that criminal behavior can be partly explained by personality traits rooted in biological factors. His model combines personality psychology with biology to explain why certain individuals are more predisposed to criminality.

The Three Personality Dimensions (P-E-N)

Eysenck identified three major personality dimensions relevant to criminality:

E

Extraversion

Characterized by sociability, impulsivity, and sensation-seeking. Extroverts are more prone to risky or thrill-seeking behavior which can include crime.
N

Neuroticism

Emotional instability, anxiety, and moodiness. Combined with high extraversion, may contribute to emotional, erratic, or impulsive criminal actions.
P

Psychoticism

Related to aggressiveness and interpersonal hostility. High P correlates with coldness, cruelty, and lack of empathy, strongly linked with serious criminal behaviors.

CNS and Arousal Mechanisms

🧠

Extroverts

Have an underactive reticular activation system, causing them to seek external stimulation.
💊

Dopamine

Overactivity linked to Psychoticism, which may increase impulsivity and risk-taking.
😰

Neuroticism

Associated with hyperactivity in the limbic system, which manages emotional response.
🏃

Introverts

Have a higher baseline arousal, leading to more avoidance of external stimulation.

Early Socialisation and Conditioning

🤔
How does personality impair effective socialisation?
🦉
Individuals scoring high on P-E-N may have impaired conditioning abilities. They do not easily learn to associate punishment with specific actions, promoting criminality by failing to inhibit antisocial impulses.

Key Criticisms and Limitations

❌
Theoretical Flaws
  • Overemphasis on Biology: Critics argue Eysenck neglects social and environmental factors.
  • Deterministic View: It implies behavior is predetermined by biology, underestimating free will.
⚠️
Scope & Measurement
  • Individual Differences: The theory ignores diverse backgrounds and types of crimes.
  • Measurement Issues: Personality tests may not capture the complexity of personality traits accurately.

Research Application: Heaven (1996) Study

Delinquency and Self-Esteem

Heaven’s study examined delinquency in adolescents in relation to extroversion, psychoticism, and self-esteem. The research found:
  • Adolescents with higher extroversion and psychoticism were more likely to engage in delinquent behavior.
  • Low self-esteem interacted with personality traits to increase risk.
The findings supported Eysenck’s claims about personality and criminality but also pointed to the role of self-evaluation and social factors.
Eysenck’s Criminal Personality Theory Deck
Question
Personality Traits

What are the three personality traits in Eysenck’s criminal personality theory?

Answer
Traits

Extraversion, Neuroticism, and Psychoticism.

Question
Extraversion & Crime

How does extraversion relate to criminal behavior according to Eysenck?

Answer
Explanation

Extroverts seek stimulation and may engage in risky or thrill-seeking behavior, increasing crime risk.

Question
Biological System

What biological system is linked to extraversion?

Answer
System

The reticular activation system (underactive in extroverts).

Question
Psychoticism

What is psychoticism associated with?

Answer
Traits

Aggressiveness, hostility, lack of empathy, and serious criminal behaviors.

Question
Neuroticism Influence

How does neuroticism influence criminal behavior?

Answer
Effects

High neuroticism causes emotional instability, anxiety, and impulsive actions.

Question
Autonomic Nervous System

What role does the autonomic nervous system play in neuroticism?

Answer
Role

It controls physiological stress responses linked to neuroticism.

Question
Impaired Social Conditioning

Why do criminals, according to Eysenck, have impaired social conditioning?

Answer
Explanation

They struggle to associate punishment with behavior, leading to antisocial impulses.

Question
Major Criticism

What is a major criticism of Eysenck’s theory?

Answer
Criticism

It overemphasizes biological factors and neglects social/environmental influences.

Question
Heaven’s Study

What did Heaven’s (1996) study on adolescents conclude?

Answer
Conclusion

Higher extroversion and psychoticism traits increase delinquent behavior risk, especially with low self-esteem.

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🌸 Eysenck’s Personality Theory Quiz

1. Which of the following is NOT part of Eysenck’s three dimensions of personality?

Openness is a Big Five personality trait, not part of Eysenck’s model.

2. How does an underactive reticular activation system influence criminal behavior according to Eysenck?

Underactivity causes low arousal, so extroverts seek more stimulation, potentially risky behaviors.

3. What personality trait is linked to coldness and lack of empathy?

Psychoticism is associated with aggression and lack of empathy in Eysenck’s theory.

4. Eysenck proposed criminal behavior partly results from:

He argued biological factors shape personality traits that predispose criminality.

5. Which criticism applies to Eysenck’s criminal personality theory?

The theory is criticized for ignoring diverse backgrounds and environmental inputs.

📊 Results

  • Notes and Quiz
  • Psychology
  • GCSE
  • Social Influence
  • OCR