Psychiatry - biology

Question 1

What is biogenetic explanation and how does it affect stigma?

Answer 1

There is a reduced tendency to blame the person with the md but increased tendency to view them as dangerous and unpredictable, and a want for greater social distance and prognostic pessimism (mixed blessings model)

Question 2

What are the four main neurotrasmittors?

Answer 2

Dopamine - substantial nigra
Serotonin - raphe nucleus
Acetylcholine
Glutamate

Question 3

What causes extra - pyramidal side effects? Give examples

Answer 3

D2 blockers to suppress + psychotic symptoms = EPSE

e.g. parkinsonism, akasthisia

Question 4

What are the dopamine pathways and the theory of how they affect psychoses?

Answer 4

mesocortical pathways - d1 - negative symptoms e.g. blunting
mesolimbic pathways - d2 - positive symptoms e.g. hallucinations