TY - GEN
T1 - Two ways to model the effects of sleep fatigue on cognition
AU - Dancy, Christopher L.
AU - Ritter, Frank E.
AU - Gunzelmann, Glenn
N1 - Publisher Copyright:
© Proceedings of ICCM 2015 - 13th International Conference on Cognitive Modeling.
PY - 2015
Y1 - 2015
N2 - We compare how the same cognitive model completes a task within two alternative modifications to a cognitive architecture to represent sleep deprivation. One modification (ACT-R/F) has a module that uses a biomathematical model of the effects of sleep deprivation on performance to drive parameter changes in the architecture that impact behavior and performance. The second, new, modification (ACT-R/O) represents the effects of sleep deprivation on physiological systems and has these systems modulate cognition. The model completes the psychomotor vigilance task (PVT) within both ACT-R/Φ and ACT-R/F. We found that the two implementations produced similar response times (means) in simulated days one and two. However, the distribution of the response times across the two days of sleep deprivation varied between models. The ACT-R/Φ model shows a wider distribution in both days 1 and 2 due to an increased and modulating production utility noise that affects its ability to select the correct rules consistently. Though they represent sleep deprivation in different ways, and on different levels, both of these implementations lead us towards a more unified understanding of how sleep deprivation affects our bodies, how we think and behave over time, and how to represent these effects.
AB - We compare how the same cognitive model completes a task within two alternative modifications to a cognitive architecture to represent sleep deprivation. One modification (ACT-R/F) has a module that uses a biomathematical model of the effects of sleep deprivation on performance to drive parameter changes in the architecture that impact behavior and performance. The second, new, modification (ACT-R/O) represents the effects of sleep deprivation on physiological systems and has these systems modulate cognition. The model completes the psychomotor vigilance task (PVT) within both ACT-R/Φ and ACT-R/F. We found that the two implementations produced similar response times (means) in simulated days one and two. However, the distribution of the response times across the two days of sleep deprivation varied between models. The ACT-R/Φ model shows a wider distribution in both days 1 and 2 due to an increased and modulating production utility noise that affects its ability to select the correct rules consistently. Though they represent sleep deprivation in different ways, and on different levels, both of these implementations lead us towards a more unified understanding of how sleep deprivation affects our bodies, how we think and behave over time, and how to represent these effects.
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M3 - Conference contribution
AN - SCOPUS:85025171317
T3 - Proceedings of ICCM 2015 - 13th International Conference on Cognitive Modeling
SP - 258
EP - 263
BT - Proceedings of ICCM 2015 - 13th International Conference on Cognitive Modeling
A2 - Taatgen, Niels A.
A2 - van Vugt, Marieke K.
A2 - Borst, Jelmer P.
A2 - Mehlhorn, Katja
PB - University of Groningen
T2 - 13th International Conference on Cognitive Modeling, ICCM 2015
Y2 - 9 April 2015 through 11 April 2015
ER -