Some neurotransmitters make it more likely that a neuron will send its message to other neurons, a process known as ; whereas some make it less likely that a neuron will send its message, a process known as .

Excitatory neurotransmitters affect the neuron by showing the excitatory effects. This implies they improve the probability that the neuron will fire an activity potential.
For Example: Acetylcholine, Epinephrine.
Inhibitory neurotransmitters affect the neuron by showing the inhibitory effects. This implies they decline the probability that the neuron will fire an activity.
For example: Gamma-aminobutyric acid, Serotonin.
Some neurotransmitters , for example, Dopamine, make both excitatory and inhibitory impacts.

Some neurotransmitters make it more likely that a neuron will send its message to other neurons, a process known as ________; whereas some make it less likely that a neuron will send its message, a process known as ________.