Injecting Instructions (image) Cell Press Share Print E-Mail Caption In these images, on the left a monkey initially performed the reach-grasp manipulate task instructed by blue LEDs. On the right, monkeys then learned to perform the same task instructed by the researchers. Credit Mazurek and Schieber Usage Restrictions Credit Required. Share Print E-Mail 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.