biological approach

Question 1

biological approach assumption

Answer 1

everything psychological comes first from biological

Question 2

behaviour as neurochemical basis

Answer 2

neurotransmitters transmit messages through synaptic transmission

diff levels of neurotransmitters affects our behaviour

eg low levels serotonin= anxiety
high levels dopamine = ocd

Question 3

genetic basis of behaviour

Answer 3

mz twins share 100% genes
dz twins share 50% genes

twins can be used to determine if trait or behaviour is due to genes

if mz twins higher concordance rate than dz twins (likelihood of sharing same trait) than that means it’s due to genes

eg aggression is genetic bc mz twins show higher concordance rate on this (more of them share this trait)

Question 4

genotype and phenotype

Answer 4

genotype = genetic makeup eg dominant and recessive

phenotype = how it is expressed eg brown hair
- this can be affected by environment eg dye hair to blonde

Question 5

evolution and behaviour

Answer 5

darwin = natural selection
genetic behaviour that helps with survival will be passed on to future generations
- gives possessor and their offspring advantages

eg attachment behaviour in babies (w their parents) means they are more likely to survive