Jacques Taillard

..These results suggest that both the circadian signal and the kinetics of sleep pressure buildup differ between the two chronotypes even under prior naturalistic conditions mimicking the usual working day...

..To test the effects of coffee and napping on nocturnal driving in young and middle-aged participants...

..This study confirms that "owls" are not rare in a middle-aged sample. We conclude that this adapted MEQ could be useful when investigating age-related changes in sleep...

..80, > 60% of explained variance) which better predicted the decrease in performances of nocturnal operational tasks requiring sustained attention...

..The aim of our study was to determine the age-related evolution of inhibitory motor control (i.e., ability to suppress a prepotent motor response) and sustained attention under controlled high or low sleep pressure conditions...

..To determine the ability of Maintenance of Wakefulness Test (MWT) to predict simulated driving performance in patients suffering from sleep apnea syndrome...

..Sleep-related accidents often involve healthy young persons who are driving at night. Coffee and napping restore alertness, but no study has compared their effects on real nighttime driving performances...

..To determine whether real-life driving would produce different effects from those obtained in a driving simulator on fatigue, performances and sleepiness...

..More studies are needed to determine the reproducibility of data and to verify if it can be generalized to women. Trial registration: ClinicalTrials.gov NCT01070004...

..01) identically in both categories (rANOVA, NS). Resistant subjects sustained their reaction time independently of the increase in homeostatic pressure. The phenotypic determinants of vulnerability to extended wakefulness remain unknown...

..The authors suggest that evening-type subjects have a higher voluntary engagement of wake-maintenance mechanisms during extended wakefulness due to adaptation of their sleep-wake schedule to social constraints...

..Sleepiness combined with fatigue significantly affected RT. Road safety campaigns should encourage drivers to avoid driving after sleep restriction, even on relatively short trips especially if they feel sleepy...

..05) and increased significantly during the nocturnal driving sessions compared to the reference session (P<.01). At night, extended driving impairs driving performances and therefore should be limited...

..Sleepiness and self-perception of performance were equally affected in both age groups showing different perception of performance in the age groups. Our findings are discussed in terms of vulnerability to sleep-related accidents...

..CONCLUSION: Despite the well-known acute effects of caffeine on sleep, habitual use of up to 7 cups of coffee (or 600 mg of caffeine equivalent) per day was not associated with decreased duration of sleep...

..The impact of confinement and sleep deprivation on risk-taking propensity is a key issue in crew management. We investigated both confinement and gender effects on risk propensity and performance during up to 36 h of extended wakefulness...

..Insomnia is common and associated with poor health status and quality of life. We designed a study to evaluate the impact of insomniac complaints with and without comorbidity on health status and absenteeism...

..05%; after 3 h of driving impairment corresponds to a BAC of 0.08%. In conclusion, a maximum of two continuous nocturnal driving hours should be recommended...

..To test the neurobehavioral consequences of sleep restriction combined with fatigue from long-distance driving (1000 Km/600 miles)...

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..Sleep disorders can affect driving skills, but the relative impact of sleep complaints among a large population of highway drivers is still unknown...

..Thus, despite their popularity, opening the window and listening to music cannot be recommended as sole countermeasures against driver sleepiness...

..Each paroxysmal event in left frontal region was associated clinically with a language disorder mimicking stuttering. Our observation suggests that reflex frontal focal epilepsy could be a putative etiology for acquired stuttering...

..Moreover, total sleep deprivation does not affect interference control in any of the three short Stroop tasks...

..The working-memory inhibition executive function shows greater resistance to acute sleep deprivation than does psychomotor reaction time for the performance of short tasks...