PSYB30H3 Lecture Notes - Parenting Styles, Serotonin Transporter, Reuptake
Document Summary
Genotypes: the genetic makeup that codes for a specific trait. Behavioural genetics is the study of the genetic and environmental contributions to individual differences in personality and behaviour. We call the combination of nature and nurture a genotype-environment interaction. In fact, some researchers advocate an even more complicated equation for understanding the manifestation of complex human traits a concept known as phenotype. Phenotype = genotype + environment + gene-environment correlation + gene- environment interaction. Heritability (h2) is the amount of observed individual differences in some characteristic that can be accounted for by genetic differences. Heritability refers to differences across a group or population of people- not to a specific person. Heritability therefore, refers to the inheritance of a particular trait in a particular population at a particular time, so sometimes heritability estimates differ depending on the exact sample and methods used by researchers.
