1. W. James, The Principles of Psychology (Holt, New York, 1918). (Original work published 1890)
2. D.L. Schacter, Multiple forms of memory in humans and animals, in Memory Systems of the Brain, N.M. Weinberger, J.L. McGaugh, and G. Lynch, Eds. (Guilford Press, New York, 1985).
3. The hippocampus—what does it do?