Presentation on theme: "What is Personality? The dynamic organization within the individual of those psychophysical systems that determine his unique adjustments to his environment."— Presentation transcript:
2 Personality Determinants HeredityFactors determined at conception: physical stature, facial attractiveness, gender, temperament, muscle composition and reflexes, energy level, and bio-rhythmsThis “Heredity Approach” argues that genes are the source of personalityTwin studies: raised apart but very similar personalitiesThere is some personality change over long time periodsThere has been a long-standing debate about whether genetics or environment are more important in determining personality. They both play an important role. The heredity approach refers to factors determined at conception such as physical stature and gender. This has been reaffirmed by studies that have looked at twins who were raised apart but still had similar personalities. Personalities can, however, change over time.(c) 2008 Prentice-Hall, All rights reserved.