The Biological Approach

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What is the assumption of the biological approach?
Genes, neurochemistry and nervous system affect our thoughts, feeling and behaviours; all thoughts/feelings/behaviours have a physical basis
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How much DNA do dizygotic twins share?
Roughly 50%; about the same as regular siblings
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What is a concordance rate?
The probability that a pair of individuals share certain characteristics
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What is PKU?
A rare genetic disorder that causes learning difficulties and can be controlled by diet; environmental can control biological
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What environmental factors can affect our bodies?
Radiation, trauma, health products
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Why do many psychologists accept that much of behaviour is also influenced by nature as well as nurture?
Phenotype is influenced physically by environment, so behaviour would be as well
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What can family studies show?
What abilities, addictions and talents are inherited; (Galton) all are inherited
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What can adoption studies show?
Whether abilities (etc) are due to nature or nurture
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What are the pros of the biological approach?
Scientific credibility; real-life psychoactive drug application
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What are the cons of the biological approach?
Casual conclusions are often drawn; deterministic; uncertainty over nurture or nature
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What did Charles Darwin put forward?
The theory of natural selection; behaviour that enhances an individual's survival will be passed on; selective breeding
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Other cards in this set

Card 2

Front

How much DNA do dizygotic twins share?

Back

Roughly 50%; about the same as regular siblings

Card 3

Front

What is a concordance rate?

Back

Preview of the front of card 3

Card 4

Front

What is PKU?

Back

Preview of the front of card 4

Card 5

Front

What environmental factors can affect our bodies?

Back

Preview of the front of card 5
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