Tiplet-Learning Task (IMAGE) Georgetown University Medical Center Caption The Triplet-Learning Task tests implicit learning, a type of learning that occurs without awareness or intent. Implicit learning relies on the caudate nucleus, an area of the brain affected by loss of dopamine. Credit Georgetown University Usage Restrictions This image should be used to describe research described with accompanying press release. 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.