Caffeine may disrupt the impact of real-time drowsiness on cognitive performance: a double-blind, placebo-controlled small-sample study
| Autor: | Siobhan Banks, Simon A. Jackson, Justin Fidock, Gary H. Kamimori, Maja Pajcin, E. Mitchelson, C. Della Vedova, Gemma M. Paech, C. Yates, M. Balin, Eugene Aidman, Kayla Johnson |
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| Přispěvatelé: | Aidman, E, Balin, M, Johnson, K, Jackson, S, Paech, GM, Pajcin, M, Yates, C, Mitchelson, E, Kamimori, GH, Fidock, J, Della Vedova, C, Banks, S |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Male
Sleepiness Physiology Neuropsychological Tests Audiology Placebos chemistry.chemical_compound Cognition 0302 clinical medicine Medicine Attention Fatigue media_common caffeine Multidisciplinary 05 social sciences Cognitive test Female Caffeine Vigilance (psychology) Adult Elementary cognitive task medicine.medical_specialty Science media_common.quotation_subject Placebo sleepiness Article 050105 experimental psychology 03 medical and health sciences Double-Blind Method Human behaviour Reaction Time Humans 0501 psychology and cognitive sciences Effects of sleep deprivation on cognitive performance Circadian rhythm Wakefulness business.industry drowsiness Alertness chemistry Sleep Deprivation business Psychomotor Performance 030217 neurology & neurosurgery performance gains |
| Zdroj: | Scientific Reports Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021) |
| Popis: | Caffeine is widely used to promote alertness and cognitive performance under challenging conditions, such as sleep loss. Non-digestive modes of delivery typically reduce variability of its effect. In a placebo-controlled, 50-h total sleep deprivation (TSD) protocol we administered four 200 mg doses of caffeine-infused chewing-gum during night-time circadian trough and monitored participants' drowsiness during task performance with infra-red oculography. In addition to the expected reduction of sleepiness, caffeine was found to disrupt its degrading impact on performance errors in tasks ranging from standard cognitive tests to simulated driving. Real-time drowsiness data showed that caffeine produced only a modest reduction in sleepiness (compared to our placebo group) but substantial performance gains in vigilance and procedural decisions, that were largely independent of the actual alertness dynamics achieved. The magnitude of this disrupting effect was greater for more complex cognitive tasks. |
| Databáze: | OpenAIRE |
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