The Three-Process Model of Alertness and Its Extension to Performance, Sleep Latency, and Sleep Length
- 1 January 1997
- journal article
- research article
- Published by Taylor & Francis in Chronobiology International
- Vol. 14 (2) , 115-123
- https://doi.org/10.3109/07420529709001149
Abstract
This paper summarizes a mathematical/computer model for predicting alterness/performance in daily living. The model uses sleep data as input and contains a circadian and a homeostatic component (amount of prior wake and amount of prior sleep), which are summed to yield predicted alertness (on a scale between 1 and 16) as well as performance on monotonous tasks. The model includes an identification of levels at which the risk of performance/alertness impairment starts, as well as prediction of sleep latency and time of awakening of sleep episodes. It is suggested that the model may be used to evaluate work/rest schedules in terms of sleep-related safety risks. (Chronobiology International, 14(2), 115–123, 1997)Keywords
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