Biological Approach

Question 1

Assumptions

Answer 1

All behaviour can be explained through genes, hormones, neurotransmitters, nervous system, brain structure + evolution

Question 2

Neurochemical basis

Answer 2

Neurochemistry can explain behaviour
Neurotransmitters transmit messages through neurons
e.g low serotonin = depression
high dopamine = OCD

Question 3

Genetics

Answer 3

Monozygotic - share 100% genes
Dizygotic - share 50% genes
Twin studies used to determine likelihood of traits having a genetic basis

Concordance rate = extent twins share same characteristics

Question 4

Genotype + phenotype

Answer 4

Genotype - personas actual genetic makeup
influenced by environment
e.g identical twins look different - exercise/ dying hair

Phenotype - the way genes are expressed through: physical, behavioural and psychological characteristics

Question 5

Evolution + behaviour

Answer 5

Darwin - natural selection
Genetics that enhance survival = passed onto future generation
e.g attachment = adapted (increase survival)

Question 6

AO3

Answer 6

Treatment - drugs
Improve quality of life

Reductionaist

Can identify genetics for criminal behaviour
Genetic screening