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Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men
PURPOSE: The effects of sleep restriction on subjective alertness, motivation, and effort vary among individuals and may explain interindividual differences in attention during sleep restriction. We investigated whether individuals with a greater decrease in subjective alertness or motivation, or a...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Dove
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8286723/ https://www.ncbi.nlm.nih.gov/pubmed/34285617 http://dx.doi.org/10.2147/NSS.S294409 |
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author | Mathew, Gina Marie Strayer, Stephen M Bailey, David S Buzzell, Katherine Ness, Kelly M Schade, Margeaux M Nahmod, Nicole G Buxton, Orfeu M Chang, Anne-Marie |
author_facet | Mathew, Gina Marie Strayer, Stephen M Bailey, David S Buzzell, Katherine Ness, Kelly M Schade, Margeaux M Nahmod, Nicole G Buxton, Orfeu M Chang, Anne-Marie |
author_sort | Mathew, Gina Marie |
collection | PubMed |
description | PURPOSE: The effects of sleep restriction on subjective alertness, motivation, and effort vary among individuals and may explain interindividual differences in attention during sleep restriction. We investigated whether individuals with a greater decrease in subjective alertness or motivation, or a greater increase in subjective effort (versus other participants), demonstrated poorer attention when sleep restricted. PARTICIPANTS AND METHODS: Fifteen healthy men (M±SD, 22.3±2.8 years) completed a study with three nights of 10-hour time in bed (baseline), five nights of 5-hour time in bed (sleep restriction), and two nights of 10-hour time in bed (recovery). Participants completed a 10-minute psychomotor vigilance task (PVT) of sustained attention and rated alertness, motivation, and effort every two hours during wake (range: 3–9 administrations on a given day). Analyses examined performance across the study (first two days excluded) moderated by per-participant change in subjective alertness, motivation, or effort from baseline to sleep restriction. For significant interactions, we investigated the effect of study day(2) (day*day) on the outcome at low (mean−1 SD) and high (mean+1 SD) levels of the moderator (N = 15, all analyses). RESULTS: False starts increased across sleep restriction in participants who reported lower (mean−1 SD) but not preserved (mean+1 SD) motivation during sleep restriction. Lapses increased across sleep restriction regardless of change in subjective motivation, with a more pronounced increase in participants who reported lower versus preserved motivation. Lapses increased across sleep restriction in participants who reported higher (mean+1 SD) but not preserved (mean−1 SD) effort during sleep restriction. Change in subjective alertness did not moderate the effects of sleep restriction on attention. CONCLUSION: Vigilance declines during sleep restriction regardless of change in subjective alertness or motivation, but individuals with reduced motivation exhibit poorer inhibition. Individuals with preserved subjective alertness still perform poorly during sleep restriction, while those reporting additional effort demonstrate impaired vigilance. |
format | Online Article Text |
id | pubmed-8286723 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Dove |
record_format | MEDLINE/PubMed |
spelling | pubmed-82867232021-07-19 Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men Mathew, Gina Marie Strayer, Stephen M Bailey, David S Buzzell, Katherine Ness, Kelly M Schade, Margeaux M Nahmod, Nicole G Buxton, Orfeu M Chang, Anne-Marie Nat Sci Sleep Original Research PURPOSE: The effects of sleep restriction on subjective alertness, motivation, and effort vary among individuals and may explain interindividual differences in attention during sleep restriction. We investigated whether individuals with a greater decrease in subjective alertness or motivation, or a greater increase in subjective effort (versus other participants), demonstrated poorer attention when sleep restricted. PARTICIPANTS AND METHODS: Fifteen healthy men (M±SD, 22.3±2.8 years) completed a study with three nights of 10-hour time in bed (baseline), five nights of 5-hour time in bed (sleep restriction), and two nights of 10-hour time in bed (recovery). Participants completed a 10-minute psychomotor vigilance task (PVT) of sustained attention and rated alertness, motivation, and effort every two hours during wake (range: 3–9 administrations on a given day). Analyses examined performance across the study (first two days excluded) moderated by per-participant change in subjective alertness, motivation, or effort from baseline to sleep restriction. For significant interactions, we investigated the effect of study day(2) (day*day) on the outcome at low (mean−1 SD) and high (mean+1 SD) levels of the moderator (N = 15, all analyses). RESULTS: False starts increased across sleep restriction in participants who reported lower (mean−1 SD) but not preserved (mean+1 SD) motivation during sleep restriction. Lapses increased across sleep restriction regardless of change in subjective motivation, with a more pronounced increase in participants who reported lower versus preserved motivation. Lapses increased across sleep restriction in participants who reported higher (mean+1 SD) but not preserved (mean−1 SD) effort during sleep restriction. Change in subjective alertness did not moderate the effects of sleep restriction on attention. CONCLUSION: Vigilance declines during sleep restriction regardless of change in subjective alertness or motivation, but individuals with reduced motivation exhibit poorer inhibition. Individuals with preserved subjective alertness still perform poorly during sleep restriction, while those reporting additional effort demonstrate impaired vigilance. Dove 2021-07-14 /pmc/articles/PMC8286723/ /pubmed/34285617 http://dx.doi.org/10.2147/NSS.S294409 Text en © 2021 Mathew et al. https://creativecommons.org/licenses/by-nc/3.0/This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/ (https://creativecommons.org/licenses/by-nc/3.0/) ). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php). |
spellingShingle | Original Research Mathew, Gina Marie Strayer, Stephen M Bailey, David S Buzzell, Katherine Ness, Kelly M Schade, Margeaux M Nahmod, Nicole G Buxton, Orfeu M Chang, Anne-Marie Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men |
title | Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men |
title_full | Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men |
title_fullStr | Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men |
title_full_unstemmed | Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men |
title_short | Changes in Subjective Motivation and Effort During Sleep Restriction Moderate Interindividual Differences in Attentional Performance in Healthy Young Men |
title_sort | changes in subjective motivation and effort during sleep restriction moderate interindividual differences in attentional performance in healthy young men |
topic | Original Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8286723/ https://www.ncbi.nlm.nih.gov/pubmed/34285617 http://dx.doi.org/10.2147/NSS.S294409 |
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