Biopsychology - Excitation, Inhibition and Summation Processes

Question 1

How is a excitatory neurotransmitter charged?

Answer 1

Positively

Question 2

What does an excitatory transmitter do?

Answer 2

Makes it more likely that the post synaptic cell will fire so an impulse will travel down its axon

Question 3

Does an excitatory neurotransmitter increase or decrease brain activity in the CNS?

Answer 3

Increase

Question 4

How is an inhibitory neurotransmitter charged?

Answer 4

Negatively

Question 5

What does an inhibitory neurotransmitter do?

Answer 5

Prevents or reduces the likelihood that the post synaptic cell will fire

Question 6

Does an inhibitory neurotransmitter increase or decrease brain activity in the CNS?

Answer 6

Decrease

Question 7

When does summation occur?

Answer 7

When the excitatory and inhibitory influences are added together

Question 8

What happens when the overall effect in summation is negatively charged?

Answer 8

It reduces/inhibits the likelihood the neuron will fire an impulse down the post synaptic neuron

Question 9

What happens when the overall effect in summation is positively charged?

Answer 9

The neuron will fire an impulse down the post synaptic neuron