Chronic sleep curtailment, even without extended (>16-h) wakefulness, degrades human vigilance performance [Psychological and Cognitive Sciences]

Millions of individuals routinely remain awake for more than 18 h daily, which causes performance decrements. It is unknown if these functional impairments are the result of that extended wakefulness or from the associated shortened sleep durations. We therefore examined changes in objective reaction time performance and subjective alertness in...

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