Frequent lapses of responsiveness during an extended visuomotor tracking task in non‐sleep‐deprived subjects

@article{Peiris2006FrequentLO,
  title={Frequent lapses of responsiveness during an extended visuomotor tracking task in non‐sleep‐deprived subjects},
  author={Malik T. R. Peiris and Richard D. Jones and Paul R. Davidson and Grant J. Carroll and Philip J. Bones},
  journal={Journal of Sleep Research},
  year={2006},
  volume={15}
}
We investigated the occurrence of lapses of responsiveness (lapses) in 15 non‐sleep‐deprived subjects performing a 1D continuous tracking task during normal working hours. Tracking behaviour, facial video, and electroencephalogram (EEG) were recorded simultaneously during two 1‐h sessions. Rate and duration were estimated for lapses identified by a tracking flat spot and/or video sleep. Fourteen of the 15 subjects had one or more lapses, with an overall rate of 39.3 ± 12.9 lapses per hour (mean… 
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Evidence for distinct neural changes associated with microsleeps and with EEG theta activity during drowsiness in a continuous task is provided and it is suggested that the occurrence of micro sleeps during an active task is not a global deactivation process but involves localized activation of fronto‐parietal cortex, which, despite a transient loss of arousal, may constitute a mechanism by which these regions try to restore responsiveness.
fMRI correlates of behavioural microsleeps during a continuous visuomotor task
Behavioural microsleeps (BMs) are brief episodes of absent responsiveness accompanied by slow-eye-closure. They frequently occur as a consequence of sleep-deprivation, an extended monotonous task,
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