biological explanation- MOOD Flashcards
what is monoamine made of?
serotonin
dopamine
noradrenaline
what is noradrenaline?
neurotransmitter
central to the brain’s communication of neurons
what is a potential cause of depression?
noradrenaline
idea behind bio explanation theory
limbic system is the communication network and involves hypothalamus
system is implicated in sleep, eating, emotion so no wonder it is also related to depression
manic epi
closer related to noradrenaline
serotonin
neurotranmitter
regulates sleep, eating, emotion
imbalances of serotonin
noradrenaline levels DROP: depressive ep
noradrenaline levels HIGH: manic ep
serotonin levels
NORMAL: mood & anxiety are balanced
REDUCE: symptoms of depressive disorder
what is serotonin created from?
tryptophan (found in certain foods)
why serotonin levels rise/fall
FALL: too much monoamine oxidase (enzyme that breaks down serotonin)
changes in diet
following transmission
serotonin absorbed back in presynaptic cell via transporter molecules in presynaptic membrane
dopamine
signals in parts of brain responsible for feelings of motivation & pleasure
level of dopamine reduced = motivation affected
frist degree relative
mom dad grandma bla bla bla
pers under investigation
index case
