Homeostatic and Circadian Modulation of Cognition: Integrating Mathematical and Computational Modeling Approaches
Abstract
Generic predictions of fatigue do not translate to correct predictions of performance impairment on a given task because a) fatigue affects different components of cognitive functioning differentially; b) the effects of fatigue on cognition are inherently stochastic; and c) there are systematic individual differences. In this project, these issues were addressed by 1) refining a state-of-the-art mathematical model of sleep/wake homeostasis; 2) disentangling distinct aspects of the effects of fatigue on cognition; 3) developing new computational models of performance, using the ACT-R cognitive architecture; 4) embedding the refined mathematical model in the ACT-R computational model platform; 5) developing a statistical framework for the estimation of model parameters; and 6) examining possible mechanisms whereby individual differences observed in previously collected experimental data may be incorporated. This project helps to address the need of the Air Force to understand the effects of fatigue on cognitive capability and thereby on mission safety and success.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 20, 2012
- Accession Number
- ADA579501
Entities
People
- Hans P. Van Dongen
Organizations
- Washington State University Spokane