Biological Basis of Personality
- Three-Factor Model of Personality developed by Hans Eysenck is a causal theory of personality based on activation of reticular formation and limbic system.
- In Eysenck's Three-Factor Model of Personality, extraversion is mediated by the activation of the reticular formation.
- In Eysenck's Three-Factor Model of Personality, neuroticism is associated with the limbic system.
- Gray's Reinforcement Sensitivity Theory is based on the idea that there are three brain systems that respond to rewarding and punishing stimuli, the Fight-Flight-Freeze System, Behavioral Inhibition System, and the Behavioral Approach System.
- The Cloninger Model of Personality is based on the idea that different responses stimuli are caused by an interaction of three dimensions: Novelty Seeking (correlated with low dopamine activity), Harm Avoidance (high serotonin activity) and Reward Dependence (low norepinephrine activity).
