Where Fear Learning Begins (IMAGE) Cold Spring Harbor Laboratory Caption A subset of neurons shown here, called PKC delta-expressing cells, located in the brain's central amygdala, drive aversive learning in mice, neuroscientists from CSHL have demonstrated. Credit Li Lab CSHL Usage Restrictions None 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.