Example image of eyePlorer eyePlorer map for 'Trait theory': Personality psychology Psychology Gordon Allport Factor analysis Hans Eysenck Ancient Greek philosophy Extraversion and introversion Neuroticism Psychoticism Agreeableness Conscientiousness Openness to experience Bipolar disorder Continuous function Correlation Orthogonality Normal distribution Psychopathy Schizoid personality disorder Psychosomatic medicine Sleep Dispositional affect Brain Limbic system Reticular activating system Biology Barratt Impulsiveness Scale Evolutionary psychology Eysenck Personality Questionnaire Grit (personality trait) Harm avoidance Klaus-Peter Lesch Novelty seeking Orderliness Reward dependence Temperament and Character Inventory Typecasting (acting) Alexithymia Character orientation Construct validity GABRA6 Passive–aggressive behavior Personality style Rs1800532 Self-referential encoding Criterion validity Hyperthymia Personality type Raclopride Rs5569