| Autor: |
Stark, Julie M., Scerbo, Mark W., Freeman, Frederick G., Mikulka, Peter J. |
| Zdroj: |
Proceedings of the Human Factors and Ergonomics Society Annual Meeting; July 2000, Vol. 44 Issue: 22 p863-866, 4p |
| Abstrakt: |
The goal of the present study was to gain a better understanding of the effect of mental fatigue and workload on allocation of effort during prolonged multiple task performance was examined. Two levels of workload were manipulated between subjects. Time was assessed over three consecutive 30-min periods. Performance was measured on the Multi-Attribute Task Battery which was revised to include a new task. This new task was developed to investigate allocation of effort to various activities over time. A 2 (workload) X 3 (time) mixed factorial design was employed. The most dramatic shifts in allocation of effort were observed for the high workload participants. For these individuals, performance on several tasks suffered in the third period. These results suggest that varying workload in a multi-tasking situation can not only affect performance on concurrent tasks but also the allocation of effort over time. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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