Home▸Cognitive Science▸Eysenck's PEN Model: 3D Personality Space

Eysenck's PEN Model: 3D Personality Space

Interactive 3D map of Eysenck's PEN personality model: set Psychoticism, Extraversion and Neuroticism and watch your position move through the trait space, landing in one of the four classical temperament octants alongside a scattered reference population.

Cognitive Science3DEasy60 FPS

Personality psychology's most enduring quantitative model — Hans Eysenck's Psychoticism–Extraversion–Neuroticism (PEN) framework — reduces individual differences to three orthogonal, measurable dimensions. This simulator renders that space as a real 3D cube: a marker moves as you set each trait slider, live readouts report the Euclidean length of your personality vector, and the classic four-temperament classification (Choleric, Sanguine, Melancholic, Phlegmatic) updates instantly from the sign of your Extraversion and Neuroticism scores. Sampling random points and pinning them into a growing population scatter mirrors how psychometric researchers actually visualise cohort data collected from trait inventories like the EPQ-R.

⚙ Under the hood

Move through Hans Eysenck's three-dimensional Psychoticism-Extraversion-Neuroticism trait space and watch your marker land in one of the four classical temperament quadrants alongside a scattered reference population.

psychologypersonalityeysencktemperamentcognitive-science3d-visualization

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install