The Trial Methods (IMAGE) Kobe University Caption Solid red circles represent red marbles, resources which participant or puppets already possess; solid blue circles represent new resource distributions; and larger white circles and white squares represent dishes. Credit Kobe University 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.