biological approach ao1 Flashcards
biological approach basic assumptions
everything psychological was first biological
all beh has a biological basis
to understand beh we must look to biological struc and processes
genotype
genetic makeup
phenotype
physical charcteristics shown that have occured due to genses and environemt
true or false - mz twins have different genotypes
flase - mz twins have same genotype
in what instance would a genotype for certain characteristic not be expressed
if optimum conditions not provided expression may not be fufilled
how are reseach on twins studies done
by comparing concoordance rates of a trait in mz and dz twins
why are twin studies
to investigate if behavioural/psychological can be inherited
define concoordance rate
rate of shared beh in twins
what does high concoordance rate show
may be genetic element to whats been studied
what are mz and dz twins
mz - identical
z twins - non identical
example of high condoorfance rate in mz
dev of schizophrenia
reseach on mz twin study - depression
mcgruffin et al 1996
if one mz twin has depression 46% chance other twin does too
who is linked to evolutionary psych and what is there ideac
charles darwin
natural selection
natural selection generally
all living species got to the form they are in now through historical process involving random inheritable changes
in depth natural selection
mutation in makeup = new characteristic/beh change
if this change increases survial chance more likely to be passed on
