About the Author

Jennifer M. Shephard is Special Initiatives Program Manager, Division of Social Science, FAS, Harvard University. Stephen M. Kosslyn is John Lindsley Professor of Psychology in Memory of William James, Emeritus, at Harvard University and Director of the Center for Advanced Study in the Behavioral Sciences at Stanford University. Evelynn M. Hammonds is Barbara Gutmann Rosenkrantz Professor of the History of Science and Professor of African and African American Studies at Harvard University.