1. Describe, in your own words, the role of the brain in cocaine addiction. Include the process of neurotransmission, the neurotransmitter dopamine, and the effect of repeated use of cocaine in the process of addiction. ***One of the most challenging concepts to explain in simple language is the process of neurotransmission.*** 2. Imagine that youre leading a psychoeducational group for your clients, and your task is to explain neurotransmission—how an electrochemical impulse moves through one neuron, into the synapse, and is received by the next one. Use your creative mind and find an interesting way to present the material to your clients.