Sleep inspires insight

@article{Wagner2004SleepII,
  title={Sleep inspires insight},
  author={Ullrich Wagner and Steffen Gais and Hilde Haider and Rolf Verleger and Jan Born},
  journal={Nature},
  year={2004},
  volume={427},
  pages={352-355}
}
Insight denotes a mental restructuring that leads to a sudden gain of explicit knowledge allowing qualitatively changed behaviour. Anecdotal reports on scientific discovery suggest that pivotal insights can be gained through sleep. Sleep consolidates recent memories and, concomitantly, could allow insight by changing their representational structure. Here we show a facilitating role of sleep in a process of insight. Subjects performed a cognitive task requiring the learning of stimulus–response… 
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