Pychobiology powerpoint Flashcards
Are serotonin levels increased or decreased with depression?
decreased
Are serotonin levels increased or decreased with anxiety?
increased
Are serotonin levels increased or decreased with schizophrenia?
increased
What does serotonin regulate?
- sleep cycle
- arousal
- libido
- mood
- aggression
- pain perception
Are dopamine levels increased or decreased with depression?
decreased
Are dopamine levels increased or decreased with mania?
increased
Are dopamine levels increased or decreased with schizophrenia?
increased
Are dopamine levels increased or decreased with Parkinson’s disease?
decreased
What does dopamine affect?
Affects pleasurable sensations, delusions & hallucinations, & control of complex motor functions
What medications block dopamine from binding to its receptors?
antipsychotic medications
What is a catecholamine neurotransmitter of sympathetic nervous system?
norepinephrine
what does norepinephrine mediate?
emergency response - fight or flight
Are norepinephrine levels increased or decreased with depression?
decreased
Are norepinephrine levels increased or decreased with mania?
increased
Are norepinephrine levels increased or decreased with anxiety states?
increased
Are norepinephrine levels increased or decreased with schizophrenia?
increased
Are histamine levels increased or decreased with depression?
decreased
What neurotransmitter is associated with first line of defense against bodily injury?
histamine
What is GABA?
an inhibitory neurotransmitter
What drug increases the effects of GABA?
antianxiety
what are decreased levels of GABA associated with? (3 things)
- anxiety disorders
- movement disorders
- various forms of epilepsy
What is glutamate?
excitatory amino acid
What are 3 functions of glutamate?
- relay of sensory info
- key role in memory functions
- regulation of various motor and spinal reflexes
What disease is associated with increased levels of glutamate?
Parkinson’s disease