416 Part V Biological/Evolutionary Theories
EPNUnempathic
Cold
Antisocial
AggressiveEgocentricCreativeImpersonalTough-mindedImpulsiveSensation-
seekingSociableLivelyActiveAssertiveVenturesomeSurgentDominantCarefreeLow
self-esteemAnxiousDepressedGuilt feelingsEmotionalMoodyShyIrrationalTenseFIGURE 14.2 The hierarchical structure of P (psychoticism), E (extraversion-
introversion), and N (neuroticism).
Source: Eysenck, H. J. “Biological dimensions of personality.” In L. A. Pervin (Ed.), Handbook of Personality: Theory and
Research. New York: Guilford Press, 1990, pp. 224–276.