Recent literature on learning with instructional manipulatives seems to call for a moderate view on the effects of perceptual and interactive richness of instructional manipulatives on learning. This "moderate view" holds that manipulatives' perceptual and interactive richness may compromise learning in two ways: (1) by imposing a…

Recent research indicates that perceptual learning (PL)--experience-induced changes in the way perceivers extract information--plays a larger role in complex cognitive tasks, including abstract and symbolic domains, than has been understood in theory or implemented in instruction. Here, we describe the involvement of PL in complex cognitive tasks…

In the present study, we analyzed mice with a targeted deletion of [beta]-catenin in DA neurons (DA-[beta]cat KO mice) to address the functional significance of this molecule in the shaping of synaptic responses associated with motor learning and following exposure to drugs of abuse. Relative to controls, DA-[beta]cat KO mice showed significant…

Three major "neural systems", specialized for different types of information processing, are the sensory, declarative, and procedural systems. It has been proposed ("Trends Neurosci.",30(4), 135-141) that dyslexia may be attributable to impaired function in the procedural system together with intact declarative function. We provide a brief…

The original intent of this investigation was to evaluate the effectiveness of the Object Sorting Task (OST) as a predictor of learning outcomes, especially among minority children. The study results, however, have produced a subtle but significant shift of attention to the issue of possible differences in the cognitive organization of children…

FIVE EXPERIMENTS WERE CONDUCTED IN AN ATTEMPT TO ISOLATE SPECIFIC LEARNING PATTERNS IN CHILDREN OF VARYING DEGREES OF MENTAL RETARDATION AND TO CONTRIBUTE TO THE KNOWLEDGE OF THE PHYLOGENETIC DEVELOPMENT OF INTELLIGENCE. FACTORS STUDIED WERE THOSE KNOWN TO INFLUENCE LEARNING IN NORMAL CHILDREN AND ADULTS--KIND OF REINFORCEMENT (VERBAL OR…

THE PROCEEDINGS OF A 1963 CONFERENCE OF THE FUND FOR PERCEPTUALLY HANDICAPPED CHILDREN, INC., ARE PRESENTED. ADDRESSES GIVEN INCLUDE "BEHAVIORAL DIAGNOSIS AND REMEDIATION OF LEARNING DISABILITIES" BY SAMUEL A. KIRK, "PERCEPTUAL-MOTOR PROBLEMS OF CHILDREN" BY NEWELL C. KEPHART, "TWO PLUS TWO = FIVE" BY MAMIE JO JONES, "EMPHASES FOR THE FUTURE" BY…