Mouse neuron cluster (IMAGE) Cold Spring Harbor Laboratory Caption Cold Spring Harbor Laboratory Professor Bo Li discovered a cluster of neurons in the mouse brain that influence motivation. These cells activate a gene called Fezf2 and are connected to and activate other neurons, which are stained green in this image of a mouse brain. Credit Li lab/CSHL, 2021 Usage Restrictions Attribution required License Original 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.