GABA Inhibitory Neuron (IMAGE) Salk Institute Caption The left image shows GABA inhibitory neurons (labeled green) in the brain's reward pathway. The right panel shows electrical activity of GABA inhibitory neuron in a saline-injected or methamphetamine (METH)-injected mouse. Activation of the GABA type B receptor normally silences electrical activity, but has no effect in a mouse 24 hours after a single injection of methamphetamine Credit Courtesy of Kelly Tan and Claire Padgett, Salk Institute for Biological Studies Usage Restrictions News media reproduction to illustrate this story permitted with proper attribution as provided above. For one time use only. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.