Biological Explanations Flashcards
Why does the biological explanation think that schizophrenia runs in families?
It believes that there is a schizophrenia gene
What is the likely hood of someone developing schizophrenia?
the likely hood of someone developing schizophrenia is one in one hundred
what explanation for schizophrenia running in families would counter the biological approach?
The behavioural explanation for schizophrenia believes that the environment plays a larger role in mental disorders. Families share environments as well as genetics.
Gottesman conducted a study that took evidence from 40 family studies. what did he find?
he found that closer family members are at a higher risk of developing schizophrenia.
what is the second most pressing issue with family research?
the data gained is retrospective
why is retrospective research even less valid when it comes to looking into schizophrenia?
the diagnosis guides are constantly going through new revisions. the one used to diagnose patients in a past study could be an old edition.
what is the main issue with family research?
families often share the same environment and genetics. it is hard to determine which causes their similarities.
what did gottesman find that supports the nature side of the nature vs nurture debate.
he found that most schizophrenics did not have a mother with schizophrenia and that two thirds didn’t have a first degree relative with it.
what was the concordance rate of schizophrenia for mz twins?
42%
what does monozygotic twins mean?
it means identical twins
what does di-zygotic twins mean?
it means non identical twins.
what was the concordance rate of schizophrenia for dz twins?
9%
what do the results of the twin studies research suggest?
that genetics must play some role in schizophrenia
why are genetics not 100% the soul cause of schizophrenia according to twin studies carried out by gottesman.
because the concordance rates in twins was not 100%
what is a prospective study ?
Unlike a restrospective study as it occurs?
