Accession Number : ADA138603

Title :   Performance in Dual Tasks.

Descriptive Note : Final technical rept. 1 Apr 77-29 Feb 84,


Personal Author(s) : Hunt,E ; Lansman,M

PDF Url : ADA138603

Report Date : 29 Feb 1984

Pagination or Media Count : 43

Abstract : The goal of this project was to construct a single theoretical framework for the analysis of problem solving and real time 'attention and performance' behavior. Such a model has been developed. It has been realized as a computer program. The program is designed in a manner similar to that of various problem solving simulations that use the 'production system' approach. The program has been used to simulate results from choice reaction time, stimulus repetition, dual channel monitoring, and conflicting stimulus (Stroop) paradigms. In the development of the model several questions arose concerning human performance in situations requiring attention allocation. Experiments were conducted that showed that the mediation of attention allocation by stimulus frequency occurs through the automatic processing system, while attention allocation mediated by warning signals occurs through the controlled processing system. Further studies suggest that individual differences in the ability to control attention are specific to a stimulus modality, rather than due to a generalized ability to control attention. The theoretical framework developed here has been used as an integrative device to order the literature on individual differences in cognition, verbal comprehension, and techniques for assessing an individual's ability to memorize and recall information. (Author)

Descriptors :   *Problem solving, *Information processing, *Performance(Human), *Computerized simulation, Behavior, Attention, Cognition, Memory(Psychology), Perception(Psychology), Comprehension, Mental ability, Computer applications

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE