Sleep loss impairs short and novel language tasks having a prefrontal focus

@article{Harrison1998SleepLI,
  title={Sleep loss impairs short and novel language tasks having a prefrontal focus},
  author={Yvonne Harrison and James A. Horne},
  journal={Journal of Sleep Research},
  year={1998},
  volume={7}
}
Most cognitive tests administered during sleep loss are well rehearsed to remove practice effects. This can introduce tedium and a loss of novelty, which may be the key to the test's subsequent sensitivity to sleep loss, and why it may need only a few minutes administration before sleep loss effects are apparent. There is little evidence to show that any of these tests are actually affected by sleep loss if given de novo, without practice, but using a non‐sleep deprived control group. Although… 

Sleep Loss and Temporal Memory

  • Y. HarrisonJ. Horne
  • Psychology, Biology
    The Quarterly journal of experimental psychology. A, Human experimental psychology
  • 2000
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Altered brain response to verbal learning following sleep deprivation

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...

References

SHOWING 1-10 OF 29 REFERENCES

The effects of sleep deprivation on divergent thinking and attention processes

Results support the hypothesis that sleep serves a function of cognitive restitution, particularly in the maintenance of attentional mechanisms, and suggest that cognitive measures following sleep deprivation have not been adequately explored.

Sleep loss and "divergent" thinking ability.

It is found that 1 night of sleep loss can affect divergent thinking, and the outcome for convergent thinking tasks, which are more resilient to short-term sleep loss, is more resilient than that for convergence thinking tasks.

Sleep deprivation affects speech.

There was a significant reduction in the subjects' use of appropriate intonation in the voice after SD, with subjects displaying more monotonic or flattened voices.

Changes in cognitive processing following short-term cumulative partial sleep deprivation and recovery oversleeping

Abstract The effects on cognitive processing of 1 and 5 cumulative nights of partial sleep deprivation (PSD) and 1 and 2 nights of subsequent recovery oversleep was studied using an anagrams test and

Human Sleep, Sleep Loss and Behaviour

  • J. Horne
  • Biology, Psychology
    British Journal of Psychiatry
  • 1993
The prefrontal cortex (PFC) consists of the cortex lying in front of the primary and secondary motor cortex, and includes the dorsolateral and orbital areas, frontal eye fields, and Broca's area. Not

High incentive effects on vigilance performance during 72 hours of total sleep deprivation.

Response suppression, initiation and strategy use following frontal lobe lesions

Willed action and the prefrontal cortex in man: a study with PET

Willed acts in the two response modalities studied (speaking a word, or lifting a finger) were associated with increased blood flow in the dorsolateral prefrontal cortex (Brodmann area 46) and decreases in blood flow were also associated, but the location of these decreases was modality dependent.

A field study of sleep disturbance: effects of aircraft noise and other factors on 5,742 nights of actimetrically monitored sleep in a large subject sample.

It was shown that only a minority of ANEs affected sleep, and, for most of the authors' subjects, that domestic and idiosyncratic factors had much greater effects, than previously thought.

Echo-planar magnetic resonance imaging studies of frontal cortex activation during word generation in humans.

Nine subjects were studied by high-speed magnetic resonance imaging while performing language-based tasks, finding an increase in signal accompanied performance of the tasks, with significantly more activation for verb generation than for repeating.