Scientific Debate
There is debate among researchers as to whether the concept of sleep debt describes a measurable phenomenon. The September 2004 issue of the journal Sleep contained dueling editorials from two leading sleep researchers, David F. Dinges and Jim Horne.
A 1997 experiment conducted by psychiatrists at the University of Pennsylvania School of Medicine suggested that cumulative nocturnal sleep debt affects daytime sleepiness, particularly on the first, second, sixth, and seventh days of sleep restriction.
In one study, subjects were tested using the psychomotor vigilance task (PVT). Different groups of people were tested with different sleep times for two weeks: 8 hours, 6 hours, 4 hours, and total sleep deprivation. Each day they were tested for the number of lapses on the PVT. The results showed that as time went by, each group's performance worsened, with no sign of any stopping point. Moderate sleep deprivation was found to be detrimental; people who slept 6 hours a night for 10 days had similar results to those who were completely sleep deprived for 1 day.
Read more about this topic: Sleep Debt
Famous quotes containing the words scientific and/or debate:
“I hate Science. It denies a man’s responsibility for his own deeds, abolishes the brotherhood that springs from God’s fatherhood. It is a hectoring, dictating expertise, which makes the least lovable of the Church Fathers seem liberal by contrast. It is far easier for a Hitler or a Stalin to find a mock- scientific excuse for persecution than it was for Dominic to find a mock-Christian one.”
—Basil Bunting (1900–1985)
“Abject flattery and indiscriminate assentation degrade, as much as indiscriminate contradiction and noisy debate disgust. But a modest assertion of one’s own opinion, and a complaisant acquiescence in other people’s, preserve dignity.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)