This chapter explores the genetic and non-genetic factors that contribute to personality traits, revealing that genes determine around 40-50% of adult personality while non-genetic factors influence the remaining 50-60%. It also discusses the limited long-term impact of parents on their children's personality, and highlights the challenge of studying the idiosyncratic random experiences that shape environmental effects on personality.
In part two of our look at introversion and extroversion, we dive into the science and psychology of personality.
How do we develop these traits? How much are our genes responsible?
The way brains of introverts and extroverts differ will probably surprise you.
This episode was first broadcast in August 2022.