Preface. Section I 1. Memory, Perception, and Decision in Letter Identification W. K. Estes 2. Studies of Visual Information Processing in Man M. S. Mayzner 3. Attention and Cognitive Control Michael I. Posner and Charles R. R. Snyder 4. Form, Formation, and Transformation of Internal Representations Roger N. Shepard Section II 5. Retrieval as a Memory Modifier: An Interpretation of Negative Recency and Related Phenomena Robert A. Bjork 6. Encoding, Storage, and Retrieval of Item Information Bennet B. Murdock, Jr. and Rita E. Anderson 7. Within-Individual Differences in "Cognitive" Processes William F. Battig 8. Consciousness: Respectable, Useful, and Probably Necessary George Mandler Discussion: Sections I and II Section III 9. Memory Representations of Text Walter Kintsch 10. Computer Simulation of a Language Acquisition System: A First Report John R. Anderson 11. Semiotic Extension David McNeill 12. The Construction and Use of Representations Involving Linear Order Tom Trabasso and Christine A. Riley. Discussion: Section III. Author Index. Subject Index.