Procedural and declarative memory systems are postulated to interact in either a synergistic or a competitive manner, and memory consolidation appears to be a highly critical stage for this process. However, the precise cellular mechanisms subserving these interactions remain unknown. To investigate this issue, 24-h retention performances were…

Nurr1 expression is up-regulated in the brain following associative learning experiences, but its relevance to cognitive processes remains unclear. In these studies, rats initially received bilateral hippocampal infusions of control or antisense oligodeoxynucleotides (ODNs) 1 hour prior to training in a holeboard spatial discrimination task. Such…

This paper presents three studies which examine the susceptibility of sentence comprehension to intrusion by extra-sentential probe words in two on-line dual-task techniques commonly used to study sentence processing: the cross-modal lexical priming paradigm and the unimodal all-visual lexical priming paradigm. It provides both a general review…

The present study was conducted to test predictions derived from the hypothesis that depression may serve the purpose of adaptively facilitating disengagement from obsolete cognitive plans. Groups of students with either low or high depression scores were contrasted using a procedure that featured an initial learning phase, within which…

Clear descriptions of job expertise are required to support applications and improvements in personnel training and job performance. This report describes a practical approach to task analysis that integrates the issues, content, and methods of cognitive science and personnel psychology. Cognitively oriented task analysis employs a breadth, then…

Cognitive-based approaches to social and personality psychology have studied the structure of trait constructs in memory. The bipolar view of traits suggests that the activation of a trait construct such as "hostile" should be associated with the simultaneous activation of its semantic opposite "kind." The unipolar view, in…

This paper presents an overview of research on academic tasks in the classroom and describes some of the themes that are emerging from studies in this area. The concept of "academic task" is defined along with problems associated with using this theoretical construct in classroom research. Three conceptions of how content should be represented to…

The topic of teaching troubleshooting is examined as an example of the teaching of cognitive strategies for technical problem solving. The traditional behavioral approach to teaching troubleshooting has essentially been algorithmic. Recent cognitive research suggests an approach founded first on task analysis and characterized by: (1) analysis of…

This report summarizes the research results and provides a reference. The basic question addressed was, "Is performance on multi-component tasks predicted by performance on the individual components performed separately?" In the first series of experiments, a dual task involving memory and verbal processing components to predict a…

A quasi-systematic strategy of devising rule sets for problem solving is applied to ruler and compass geometrical constructions. "Lower order" rules consisting of basic skills and "higher order" rules which govern the selection and combination of lower order rules are identified by an analysis of problem types; three types of…

Planning the menu for a dinner party, which involves problem-solving with a large body of knowledge, is used to study the daily operation of human memory. Verbal protocol analysis, a technique devised to investigate formal problem-solving, is examined theoretically and adapted for analysis of this task. (Author/MV)

Presents a framework for analyzing academic tasks based on task conceptions formulated in cognitive psychology and research on classroom interaction. Using this framework, an analysis of a single task in a high school English class is presented. Issues raised by the study are addressed. (CJH)

The contextual determination of cognitive activities was investigated in a primary school naturalistic experiment. Performance at a group level on an elementary arithmetic task is influenced by the immediate context. Use of analogies as heuristic aids and the functional meaning of the task as a pedagogical praxis are assessed. (TJH)

Mental abilities can be analyzed at four levels: composite tasks, subtasks, components, and metacomponents. Each level of analysis reveals something about the structure and content of mental abilities responsible for intelligent performance. (Author/WI)