The effects of chewing versus caffeine on alertness, cognitive performance and cardiac autonomic activity during sleep deprivation
Kohler M, Pavy A, van den Heuvel C
Journal of sleep research · 28 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2006-11-17 · J Sleep Res · vol. 15 · número 4 · págs. 358–368
- Editorial
- Wiley
- Citado
- 50 citas · más que el 94% de estudios similares · 5.2× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 54 trabajos
- Acceso
- De pago
- Áreas de investigación
- Sleep and Work-Related Fatigue · Sleep and Wakefulness Research · Coffee research and impacts
- Palabras clave
- mastication, caffeine, sleep deprivation, alertness, cognitive performance, cardiac autonomic activity, heart rate, pre-ejection period, parasympathetic activity, sleepiness, psychomotor vigilance, complex cognitive tasks
- MeSH
- autonomic nervous system, humans, sleep deprivation, caffeine, electrocardiography, problem solving, psychomotor performance, arousal, attention, reaction time, neuropsychological tests, heart rate, myocardial contraction, mastication, chewing gum, signal processing, computer-assisted, adolescent, adult, female, male
3 autores
- Mark J Kohler🇦🇺University of South Australia
- ALAN PAVY🇦🇺University of South Australia
- Cameron J. van den Heuvel🇦🇺University of South Australia
Resumen
El texto original del estudio, en el idioma en que se publicó.
Chewing has been shown to alleviate feelings of sleepiness and improve cognitive performance during the day. This study investigated the effect of chewing on alertness and cognitive performance across one night without sleep as well as the possible mediating role of cardiac autonomic activity. Fourteen adults participated in a randomized, counterbalanced protocol employing a chewing, placebo and caffeine condition. Participants completed tasks assessing psychomotor vigilance, tracking, grammatical reasoning, alertness and sleepiness each hour across the night. All participants received either placebo or caffeine (200 mg), while the chewing condition also chewed on a tasteless and odorless substance for 15 min each hour. Heart rate (HR), root mean square of the successive differences in R-R intervals on the ECG (RMSSD), and preejection period (PEP) were simultaneously recorded. Alertness and cognitive performance amongst the chewing condition did not differ or were in fact worse when compared with placebo. Similarly, measures of HR and RMSSD remained the same between these two conditions; however, PEP was reduced in the later part of the night in the chewing condition compared with a relative increase for placebo. Caffeine led to improved speed and accuracy on cognitive tasks and increased alertness when compared with chewing. Relative increases in RMSSD and reductions in HR were demonstrated following caffeine; however, no change in PEP was seen. Strong associations between cardiac parasympathetic activity and complex cognitive tasks, as well as between subjective alertness and simpler cognitive tasks, suggest a differential process mediating complex versus simple cognitive performance during sleep deprivation.
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