With reference to Hans Eysenck's Three-Factor Model or PEN model of personality, which of the following is the most distinct psychological and clinical behavioral characteristic of an individual scoring high on the 'Psychoticism' dimension among Psychoticism, Extraversion, and Neuroticism?

Hans Eysenck advanced the biological and trait-based approach to personality by proposing the PEN model (Psychoticism, Extraversion, Neuroticism). In this model, a high level of 'Psychoticism' indicates aggressiveness, egocentric behavior, lack of empathy, cruelty, and disregard for social rules in an individual. In contrast, 'Extraversion' is associated with sociability and 'Neuroticism' with emotional instability.