Chapter 12.5, Problem 9AYLO

Summary Introduction

To discuss:

Neuromodulators, their chemical nature and how they affect synaptic transmission.

Introduction:

At the individual synapse, the neurons sometimes secrete chemical signals with long term effect on the entire neuron group instead of short, quick effects. Some people call these as neuromodulators and some use the term neurotransmitter generally to include these. The neuromodulators modulate or adjust the neuron group activity in a number of ways: presynaptic neuron increasing the neurotransmitter release, reuptake of the rate of neurotransmitter is altered and so forth.