This is a segment of a longer animation created for Brookhaven National Laboratory. (You may view the entire animation and learn about GVG on this page of Brookhaven's web site.)

The animation demonstrates how GVG (or gamma vinyl-GABA) appears to prevent the biochemical and behavioral effects of nicotine and cocaine by altering the way brain cells communicate.

Neurotransmitters such as dopamine travel in the synapse between neurons and then return to their home cell. Drugs like nicotine and cocaine can prevent this re-uptake. This portion of the animation depicts the blockage of the dopamine transmitters by cocaine.