Network Evolution in Small Groups (IMAGE) NYU Tandon School of Engineering Caption An example of network evolution in small groups. The directed links, those with arrows, were generated when one individual changed the answer to that of another. (a) When participants were shown the cumulative performance of others based on the last answers at each round in the main experiment, (b) when participants were shown the cumulative performance of others based on the first answers at each round in the additional experiment. Arrow width identifies the number of such instances, while the node size and color represent network centrality and performance as a cumulative score, respectively. Credit Maurizio Porfiri, Ph.D. Usage Restrictions Registered Reporters Only 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.