Autoreceptors:
A) enhance synthesis and release of neurotransmitter.
B) reduce the synthesis and additional release of neurotransmitter.
C) reduce binding at the postsynaptic receptor and produce inhibition at the synapse.
D) augment synaptic transmission.

Question

Quizplus · Accepted Answer

Autoreceptors are receptors located on the presynaptic neuron that respond to the neurotransmitter released by that neuron. When the neurotransmitter binds to the autoreceptor, it reduces the synthesis and additional release of neurotransmitter, thus reducing the amount of neurotransmitter in the synapse. This is a negative feedback mechanism that helps regulate the amount of neurotransmitter in the synapse.