TRANSFER OF A RESPONSE TO NAIVE RATS BY INJECTION OF RIBONUCLEIC ACID EXTRACTED FROM TRAINED RATS.
Rats were trained in a Skinner box to approach the food cup when a distinct click was sounded. Ribonucleic acid was extracted from the brains of these rats and injected into untrained rats. The untrained rats then manifested a significant tendency (as compared with controls) to approach the food cup when the click, unaccompanied by food, was presented.
Brain↗