Nature-nurture debate Flashcards
What is nature?
Behaviour is seen to be the product of innate (biological/genetic) factors
What is nurture?
Behaviour is a product of environmental influences
What are two explanations of nature?
Genetic explanation
Evolutionary explanations
Genetic explanations?
Family, twin and adoption studies show that the closer the two individuals are genetically the more likely that both go them will develop the same behaviours
Example of genetic explanations?
The concordance rate for a schizophrenia is about 40% for MZ twins (have identical genes) and 7% for DZ twins (share 50% of genes)
Evolutionary explanations?
A behaviours or characteristic that promotes survival and reproduction will be naturally selected- this is because behaviours/characteristics are adaptive and thus the genes are passed on
Example of evolutionary explanations?
Bowlby proposed attachment was adaptive because it mean an infant was more likely to be protected and therefore more likely to survive
What did Locke say?
Humans are born with a blank slate - ‘a tabula rasa’
Examples of the influence of nature?
Behaviourism - All behaviour can be explained in terms of experience (Skinner) using concepts of classical and operant conditioning
Social learning theory - Bandura - behaviour acquired through vicarious reinforcement; he acknowledged biological aspects but the way anger expressed is acquired through environmental influences