Queueing Network-ACTR Modeling of Concurrent Tasks Involving Multiple Controlled Processes

Abstract

An important research question of human performance modeling is how to model concurrent task performance and mental workload. In this paper, we introduce a new method to model concurrent tasks involving multiple controlled processes in need of dedicated cognitive resources, which previous methods have difficulties to model. The key concept is a filtering discipline implemented in Queueing Network-ACTR cognitive architecture that allows cognitive resources to be exclusively occupied by one of the concurrent tasks when necessary, instead of switching between the tasks as frequently as possible. In the simulations of dual-tasks involving diagnostic decision making and patient status tracking, we found that the new discipline is necessary to model human performance and mental workload. Implications and practical applications of Queueing Network-ACTR in system evaluation and design are discussed.

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References

Anderson

J. R.

Bothell

Byrne

M. D.

Douglass

Lebiere

Qin

(2004). An integrated theory of the mind. Psychological Review, 111(4), 1036–1060.

Anderson

J. R.

Matessa

(1997). A production system theory of serial memory. Psychological Review, 104(4), 728-748.

Cao

Liu

(2011). Mental workload modeling in an integrated cognitive architecture. Proceedings of the Human Factors and Ergonomics Society Annual Meeting, 55(1), 2083-2087.

Cao

Liu

(In Press). Queueing Network-Adaptive Control of Thought Rational (QN-ACTR): An integrated cognitive architecture for modelling complex cognitive and multi-task performance. International Journal of Human Factors Modelling and Simulation

Hart

S. G.

(2006). NASA-task load index (NASA-TLX): 20 years later. Human Factors and Ergonomics Society Annual Meeting Proceedings, 50, 904-908.

Kahneman

(2003). A perspective on judgment and choice: Mapping bounded rationality. American Psychologist, 58(9), 697–720.

Liu

(1997). Queueing network modeling of human performance of concurrent spatial and verbal tasks. IEEE Transactions on Systems, Man, Cybernetics, 27(2), 195-207.

Liu

Feyen

Tsimhoni

(2006). Queueing Network-Model Human Processor (QN-MHP): A computational architecture for multitask performance in human-machine systems. ACM Transactions on Computer-Human Interaction, 13(1), 37–70.

Salvucci

D. D.

Taatgen

N. A.

(2008). Threaded cognition: An integrated theory of concurrent multitasking. Psychological Review, 115(1), 101–130.

10.

Liu

(2008). Queuing network modeling of the psychological refractory period (PRP). Psychological Review, 115(4), 913–954.