Neurotransmitters Flashcards
1
Q
What are some examples + functions of neurotransmitters?
A
- Dopamine = Associated with pleasure feelings, emotion, cog functions, movement
- Serotonin = Happiness + good mood
- Noradrenaline = Plays important role in ‘fight or flight’ response
2
Q
What specific things do neurotransmitters have?
A
- Structure
- Function
- Postsynaptic receptor
3
Q
What can neurotransmitters be and what do they mean?
A
Excitatory = Increases positive charge of postsynaptic neuron, making AP more likely to fire
Inhibitory = Increases negative charge of postsynaptic neuron, making the AP less likely to fire
4
Q
Explain the functions + impacts of GABA:
A
- Inhibitory, calming function = blocks nerves from firing which brings calm feeling
- Low GABA levels linked to epilepsy, restlessness, + anxiety
5
Q
Explain the functions + impacts of dopamine:
A
- Both excitatory + inhibitory
- Associated with pleasure feelings
- Linked to drug addiction
6
Q
Explain the functions + impacts of glutamate:
A
- Excitatory
- Involved in cognitive functioning + associated with brain development
- Too much can be harmful + lead to stroke
7
Q
What are the functions + impacts of serotonin?
A
- Excitatory
- Gives happiness + good mood, regulates sleep-wake cycle
- Low levels linked to depression + anxiety
8
Q
What are some examples of neurotransmitters found in the brain?
A
GABA, dopamine, glutamate, serotonin
