Reports bita-Adrenergic antagonists injected into rats trained in a passive avoidance task produced time-dependent and dose-dependent decreases in retention of the task. Results were stereospecific and reversed by norepinephrine. (SL)

A model is proposed in which information processing is accompanied by dynamic processes, including the reorganization of items into active patterns and their subsequent displacement. Research using category names and instances showed that reaction times decreased with each successive repetition under one condition, but longer latencies were…

The "property-set model" is proposed for concept learning and subsequent recognition and classification of old and new exemplars. In an experimental evaluation of alternative models, the property-set model was the best predictor of both recognition and classification performance. (Author/RM)

Matched groups of normal and retarded readers were required to perform same/difference judgments in which the interval between standard and comparison stimuli was either 0, 1, or 6 seconds. (BRT)

This paper reports eight experiments with elementary school children and college students concerning the form class effect. Results confirmed several predictions regarding the effects on recall of enhanced organization between pairs of nouns by verb connectives versus conjunction connectives. (Author/JMB)

The knowledge-assembly theory is proposed to explain the acquisition, representation, and processing of knowledge. The theory assumes that both the representation and processing of knowledge change qualitatively as learning progresses. (Editor)

In an investigation of the organizational processes in the free recall of verbal material, 24 sixth graders, 24 seventh graders, and 24 mildly retarded students were randomly assigned to the cells of a 3 (grade level) x 2 (list novelty) x 2 (list organization) factorial design. (Author)

Visual, name and conceptual encoding of pictures were studied using a recognition memory task in which 4-, 8-, and 16-year-olds quickly decided whether or not pictures were identical to remembered study pictures. (SB)

One hundred and fifty psychology students, assigned to five groups, used different learning strategies (repetition, paraphrasing, linking, grouping, and hierarchy) to study three structurally different chemistry texts. The strategies that demanded recognition of linked relationships as well as retention of this information increased students'…

Studied was the development of a variety of grammatical-sensitivity and phonological skills in normally achieving, reading-disabled, arithmetic-disabled, and attention deficit disordered children 7 to 14 years old. (PCB)

Indicates that subjects spent more time reading important information than unimportant information and that, when processing time was limited, extra cognitive effort was allocated to accomplish the same result. Finds that important information was also recalled better, confirming the "levels effect." Reports three experiments supporting…

Reports the results of two studies designed to investigate the presence of six cognitive levels of intellectual performance as predicted by Bloom's taxonomy. Results of both experiments revealed a performance dichotomy with synthesis and evaluation forming the superior category. Includes examples of the text items used and draws implications for…

Reviews a study which sought to obtain a quantitative metabolic map of the neurons mediating a specific memory. Research results support notions of cooperative processes in which nonrandom behavior of high ensembles of neural elements mediates the integration and processing of information and the retrieval of memory. (ML)

The goal of this unified theory of human reasoning is to specify what constitutes reasoning and to characterize the psychological distinction between inductive and deductive reasoning. The theory views reasoning as the controlled and mediated application of three processes (encoding, comparison and selective combination) to inferential rules. (JAZ)