Originally published in 1982, the editors felt that their field was clearly in need of explanatory accounts for many different areas. This volume presents statements of the status of research in several areas by scholars at the forefront of the discipline. It tries at the same time to juxtapose theoretical and experimental perspectives in order to display some of the major lines of tension in the field. Divided into 5 parts it covers: Theoretical Perspectives; Experimental Studies in Processing; Neuropsychological Studies in Processing; Studies in Development; followed by Commentary on some specific chapters.