(IMAGE) Institut Pasteur Caption This photo shows the basolateral amygdala in a mouse. Fluorescent markers highlight the neurons that encode negative stimuli (in purple) and the neurons that preferentially encode positive stimuli (in red). Credit © Claire-Hélène De Badts, Institut Pasteur Usage Restrictions © Claire-Hélène De Badts, Institut Pasteur 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.