Mouse Purkinje Neuron (IMAGE) University of California - San Diego Caption A stained micrograph of a mouse purkinje neuron, a type of brain cell that releases the GABA neurotransmitter, and which is affected by nicotine exposure. Credit Cell Image Library, NCMIR Usage Restrictions Please link photo credit to <a href="http://www.cellimagelibrary.org/images/CCDB_16" target="_blank">http://www.cellimagelibrary.org/images/CCDB_16</a> 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.