Biopsychology(excitatory and inhibitory neurotransmitters)

Question 1

What is a neurotransmitter?

Answer 1

Chemical messengers that carry across the synaptic gap. Can be classed as excitatory or inhibitory in their action.

Question 2

Excitatory neurotransmitter -

Answer 2

acetylcholine and noradrenaline act as on switches in the nervous system. Increase likelihood that an excitatory signal is sent to the post synaptic neuron, making them more likely to fire.

Question 3

Inhibitory neurotransmitters -

Answer 3

serotonin and GABA, act as the nervous systems off switch. Decreasing the likelihood of a neuron firing, generally responsible for calming the mind and body. Filter out any excitatory neurotransmitters.