Cited by 182Sleep and Work-Related FatigueSleep and Wakefulness ResearchCircadian rhythm and melatonin

Simulation of daytime vigilance by the additive interaction of a homeostatic and a circadian process

Achermann, Peter, Borbély, Alexander A.·1994·Biological Cybernetics

Abstract

The two-process model of sleep regulation postulates that a homeostatic and a circadian process underlie sleep regulation. The timing of sleep and waking is accounted for by the interaction of these two processes. The assumptions of two separate processes or of a single process resulting from their additive interaction are mathematically equivalent but conceptually different. Based on an additive interaction, subjective alertness ratings in a forced desynchrony protocol and subjective sleepiness ratings in a photoperiod experiment were simulated. The correspondence between empirical and simulated data supports the basic assumption of the model.

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Crossref · 10.1007/bf00197314

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  • The two-process model of sleep-wake regulation consists of a homeostatic process (S) and a circadian process (C) that combine to determine the timing of sleep onset and offset.

    “The model consists of a homeostatic process (S) and a circadian process (C), which combine to determine the timing of sleep onset and offset.”

    From Circadian rhythms, sleep deprivation, and human performance (2013) · cites this paper as [22]

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Authors
Achermann, P., & Borbély, A. A.
Affiliations
University of Zurich (CH)
Venue
Biological Cybernetics
Published
1994-06
Volume
71
Issue
2
Pages
115-121
ISSN
  • 0340-1200 (ISSN-L)
  • 1432-0770
OpenAlex
W1968725550
Cited by
180
References
28
Citations by year
2026: 3 · 2025: 3 · 2024: 3 · 2023: 6 · 2022: 6 · 2021: 6 · 2020: 5 · 2019: 6 · 2018: 6 · 2017: 11 · 2016: 4 · 2015: 7 · 2014: 9 · 2013: 12 · 2012: 11
FWCI
5.07
Type
journal article
Language
en
Open access
closed
Locations
  • Biological Cybernetics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
homeostatic sleep drive, additive interaction, daytime vigilance, subjective alertness, subjective sleepiness, forced desynchrony, photoperiod, mathematical simulation
MeSH terms
Arousal, Circadian Rhythm, Cybernetics, Homeostasis, Humans, Models, Biological, Sleep, Photoperiod

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