CAROL AND MIKE WERNER / SCIENCE PHOTO LIBRARY CAROL AND MIKE WERNER / SCIENCE PHOTO LIBRARY
Digital illustration comparing dopamine levels in a normal neuron and one affected by Parkinson's disease. The Parkinson's affected neuron on the left produces a very low level of the neurotransmitter dopamine. The neuron on the right supplies a normal amount of dopamine to the synapse.
Model release not required. Property release not required.