Skinner departed from methodological behaviorists by not eschewing the private. He made concepts such as consciousness public by stressing the reinforcing relationships among one's own behavior, the behavior of others (that is, culture), and the stimuli in the world. Thus, it is important to emphasize that Skinner did not deny the existence of consciousness.
Christopher H. Ramey
Department of Psychology
Florida Southern College

ERRATA "The Samaritan Paradox," by Ernst Fehr and Suzann-Viola Renninger, should have said that the human species "may be" rather than "is apparently" the only one with a genetic makeup that promotes strong altruism.

Credit for the images of glia cells on page 42 of "The Forgotten Brain Emerges," by Claudia Krebs, Kerstin Hüttmann and Christian Steinhäuser, was incorrectly attributed to "R. Douglas Fields, University of Maryland." The credit should have read: "Courtesy of R. Douglas Fields; Source: Derived from supporting online material for R. D. Fields and B. Stevens-Graham in Science, Vol. 298, pages 556-562; October 18, 2002. Used with permission." We regret this unfortunate mistake.

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