Nature vs Nurture

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A level Psychology (Issues and Debates) Flashcards on Nature vs Nurture, created by Chanelle Titchener on 01/10/2018.
Chanelle Titchener
Flashcards by Chanelle Titchener, updated more than 1 year ago
Chanelle Titchener
Created by Chanelle Titchener about 6 years ago
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Question Answer
Nature Behaviour is seen as the product of innate factors
Nurture Behaviour is a product of environmental influences
The Debate Nature - Early nativists argue that human characteristics and even some aspects of knowledge are innate Nurture - Empiricists argue that the mind is a blank slate at birth, we learn and experience as a result of our environment
Heritability Coefficient Used to assess heredity Numerical figure ranging from 0-0.1 and determines the extent to which a characteristic has a genetic basis
The Debate Continued Nature - Lerner (1986) identified different levels of the environment May be defined in narrow pre-natal terms. Nurture - through post-natal experiences
Genetic Explanations Family, twin, and adoption studies show that the closer two individuals are genetically the more likely they are to develop the same behaviours EG: Concordance rates for Schizophrenia 40% MZ twins and 7% in DZ twins
Evolutionary Explanations The principle that a behaviour that promotes survival and reproduction will be naturally selected EG: Bowbly proposed that attachment was adaptive and meant the infant was more likely to survive
Influence of nurture Behaviourism - assumes all behaviour is learnt through operant and classical conditioning SLT - Bandura suggested that behaviour is learnt through observation and imitation
Importance of heredity and environment Impossible to answer Lerner suggests that the environment influences a child from the moment of birth Nature and nurture are so closely intertwined so one cannot be studied without the other
importance of heredity and environment Twin studies suggest a concordance rate but it is difficult to tell whether a high concordance rate is due to shared genes or shared environment
Interaction of Nature and Nurture Rats raised in bare, dark cages have been compared to rats that grow up in stimulating environments Un-stimulated rats did worse in problem solving tasks and learned more slowly
Interactionist Approach EG: attachment Attachment patterns are often seen as the result of a 2-way street, in which the child's innate temperament will influence the way the parent interacts with the child and affect the child's behaviour
Evidence (Rutter and Rutter 1993) Aggression - Hostility Described how aggressive children think and behave in ways that lead other children to respond to them in a hostile way This reinforces the antisocial behaviour child's view of the world Aggressive children experience aggressiv environments
Epigenetics Refers to the change in our genetic activity without changing out genetic code Caused by interactions with the world
Epigenetics continued The marks tell our bodies which genes to use and which to ignore and in turn they influence the genetic code 3rd element of the debate
Epigenetics continued Dias and Ressler (2014) Male lab rats were given electrical shocks every time they were exposed to acetophenone Rat's children and grandchildren feared the smell
Family Studies If a family member share a trait more frequently than unrelated people do, then this could mean a genetic influence Solyom et al (1974)
Adoption Studies Similarites with the adoptive parent suggest an environmental influence - Nurture Similarities with the biological parent suggest an innate influence - Nature
Twin studies MZ twins share 100% of their DNA whereas DZ twins share 50% Holand et al (1988) found 56% MZ concordance in anorexia, and 5% for DZ twins. If a trait is completely genetic, the concordance rate should be 100%
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