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Performance and alertness effects of caffeine, dextroamphetamine, and modafinil during sleep deprivation
Abstract
Stimulants may provide short-term performance and alertness enhancement during sleep loss. Caffeine 600 mg, d-amphetamine 20 mg, and modafinil 400 mg were compared during 85 h of total sleep deprivation to determine the extent to which the three agents restored performance on simple psychomotor tasks, objective alertness and tasks of executive functions. Forty-eight healthy young adults remained awake for 85 h. Performance and alertness tests were administered bi-hourly from 8:00 hours day 2 to 19:00 hours day 5. At 23:50 hours on day 4 (after 64 h awake), subjects ingested placebo, caffeine 600 mg, dextroamphetamine 20 mg, or modafinil 400 mg (n=12 per group). Performance and alertness testing continued, and probe tasks of executive function were administered intermittently until the recovery sleep period (20:00 hours day 5 to 8:00 hours day 5). Bi-hourly postrecovery sleep testing occurred from 10:00 hours to 16:00 hours day 6. All three agents improved psychomotor vigilance speed and objectively measured alertness relative to placebo. Drugs did not affect recovery sleep, and postrecovery sleep performance for all drug groups was at presleep deprivation levels. Effects on executive function tasks were mixed, with improvement on some tasks with caffeine and modafinil, and apparent decrements with dextroamphetamine on others. At the doses tested, caffeine, dextroamphetamine, and modafinil are equally effective for approximately 2-4 h in restoring simple psychomotor performanc…
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“AMP restored executive functions (Killgore et al., 2009) and psychomotor vigilance test speed following continuous sleep deprivation (Killgore et al., 2006, 2008; Wesensten et al., 2005).”
From Systematic reviews of the acute effects of amphetamine on working memory and other cognitive performances in healthy individuals, with a focus on the potential influence of personality traits (2023) · cites this paper as Wesensten et al., 2005
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“Besides, compared with the tests of 10 o’clock session, at which cognition was thought as the best of the day, the postrecovery sleep performance recovered to or showed better than presleep deprivation levels in both tDCS and sham groups, which was similar to administration of caffeine, dextroamphetamine, and modafini…”
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VYRESNIŲJŲ KLASIŲ MOKSLEIVIŲ MIEGO KOKYBĖS, SU JA SUSIJUSIO ELGESIO IR ASMENYBĖS BRUOŽŲ SĄSAJOS
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Background
Metadata
- Authors
- WESENSTEN, N. J., KILLGORE, W. D. S., & BALKIN, T. J.
- Affiliations
- Walter Reed Army Institute of Research (US)
- Corresponding author
- WESENSTEN, NANCY J.
- Venue
- Journal of Sleep Research
- Publisher
- Wiley
- Published
- 2005-08-25
- Volume
- 14
- Issue
- 3
- Pages
- 255-266
- ISSN
- 0962-1105 (ISSN-L)
- 1365-2869
- OpenAlex
- W1975163395
- Cited by
- 306
- References
- 0
- Citations by year
- 2026: 5 · 2025: 6 · 2024: 11 · 2023: 9 · 2022: 12 · 2021: 13 · 2020: 11 · 2019: 19 · 2018: 13 · 2017: 8 · 2016: 15 · 2015: 10 · 2014: 22 · 2013: 22 · 2012: 26
- FWCI
- 22.89
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Sleep Research (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Health Sciences › Medicine › Pharmacology (medical) › Coffee research and impacts
- Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
- Keywords
- caffeine, d-amphetamine, modafinil, sleep deprivation, stimulants, alertness, psychomotor performance, executive function, psychomotor vigilance, recovery sleep, drug elimination rate
- MeSH terms
- Modafinil, Adult, Central Nervous System Stimulants, Arousal, Benzhydryl Compounds, Caffeine, Cognition, Dextroamphetamine, Female, Humans, Disorders of Excessive Somnolence, Male, Neuropsychological Tests, Psychomotor Performance, Sleep Deprivation, Wakefulness, Polysomnography, Dopamine Agonists
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