This selective bibliography of recent publications by Rand researchers in the Information Processing Systems research program includes only those papers concerned with the broad range of topics in cognitive science. These topics include the modeling of complex human behavior, the construction of intelligent computer systems, and the representation of knowledge in human and computer memories; the research draws upon the disciplines of cognitive psychology, educational psychology, computer science, artificial intelligence, and linguistics. The first of two sections provides abstracts for papers published between April 1978 and April 1979. The second section contains a list of titles published prior to April 1978 which are abstracted in Rand Paper P-5950. Titles are arranged alphabetically with topic and author indexes, and information is provided for obtaining reprints of the listed publications. (Author/RAA)