Article (Scientific journals)
Drowsiness or mind-wandering? Fluctuations in ocular parameters during attentional lapses
Stawarczyk, David; François, Clémentine; Wertz, Jérôme et al.
2020In Biological Psychology, 156, p. 107950
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Keywords :
mind-wandering; pupillometry; eyeblinks; drowsiness; attentional lapses
Abstract :
[en] Two independent lines of evidence suggest that drowsiness and mind-wandering share common neurocognitive processes indexed by ocular parameters (e.g., eyeblink frequency and pupil dynamics). Mind-wandering and drowsiness frequently co-occur, however, such that it remains unclear whether observed oculometric variations are related to mind-wandering, drowsiness, or a mix of both. To address this issue, we assessed fluctuations in mind-wandering and sleepiness during a sustained attention task while ocular parameters were recorded. Results showed that oculometric variations during mind-wandering were fully explained by increased sleepiness. However, mind-wandering and sleepiness had additive deleterious effects on performance that were not fully explained by ocular parameters. These findings suggest that oculometric variations during task performance reflect increased drowsiness rather than processes specifically involved in mind-wandering, and that the neurocognitive processes indexed by oculometric parameters (e.g., regulatory processes of the locus coeruleus norepinephrine system) do not fully explain how mind-wandering and sleepiness cause attentional lapses.
Research Center/Unit :
PsyNCog - Psychologie et Neuroscience Cognitives - ULiège
Disciplines :
Neurosciences & behavior
Author, co-author :
Stawarczyk, David ;  Université de Liège - ULiège > Département de Psychologie > Département de Psychologie
François, Clémentine
Wertz, Jérôme
D'Argembeau, Arnaud  ;  Université de Liège - ULiège > Département de Psychologie > Département de Psychologie
Language :
English
Title :
Drowsiness or mind-wandering? Fluctuations in ocular parameters during attentional lapses
Publication date :
2020
Journal title :
Biological Psychology
ISSN :
0301-0511
eISSN :
1873-6246
Publisher :
Elsevier, Netherlands
Volume :
156
Pages :
107950
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
H2020 - 798109 - CPA-EST - Mind-wandering in everyday event comprehension: Memory, attention, and the brain
Name of the research project :
Mind-wandering in everyday event comprehension: Memory, attention, and the brain
Funders :
EC - European Commission [BE]
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since 29 September 2020

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