NPA personality theory
NPA personality test
Benis A.M. A theory of personality traits leads to a genetic model for borderline types and schizophrenia. Speculations in Science & Technology 1990;13(3):167-75.
Benis A.M. and Hobgood D.K. Dopamine receptor DRD3 codes for trait aggression as Mendelian recessive. (Preprint. Full text.) Medical Hypotheses 2011;77(6):1108-10.
Benis A.M. Toward Self & Sanity: On the Genetic Origins of the Human Character. Second edition. 499 pp. (revised 2008)
Originally published by Psychological Dimensions Press, New York, 1985.
Benis A.M. NPA Theory of Personality. Paperback, 517 pp. (revised 2008)