PSY 121 Lecture Notes - Lecture 29: Genetic Predisposition, Impulsivity, Twin Study
Document Summary
Trait theories help to describe people: disadvantages. Trait theories do not explain how behaviour is generated or how personality develops. Genetic influences on personality: what aspects of personality may have an inherited component, genetic contribution to personality measured by. Heritability studies of twins and adopted individuals. Animal personalities: research has argued that some nonhuman species show personality", ratings of personalities of dogs between dog, owners, their friends, and neutral observers all showed strong agreement. Dimensions of extroversion, agreeableness, neuroticism, and openness to experience. Genetic influences on personality: what aspects of personality may have an inherited component, temperaments. Physiological dispositions to respond to the environment in certain ways. Present in infancy and in many nonhuman species and assumed to be innate. Include reactivity, soothability, impulsivity, positive and negative emotionality. A statistical estimate of the proportion of the total variance in some trait that is attributable to genetic differences among individuals within a group.
