Non-24-hour sleep–wake syndrome following a car accident

@article{Boivin2003Non24hourSS,
  title={Non-24-hour sleep–wake syndrome following a car accident},
  author={Diane B. Boivin and Francine O. James and Jonathan Bruce Santo and Okan Çalıyurt and C. Chalk},
  journal={Neurology},
  year={2003},
  volume={60},
  pages={1841 - 1843}
}
The authors report the case of a 39-year-old sighted woman who displayed non-24-hour sleep–wake cycles following a car accident. The phase relationship between endogenous circadian markers such as plasma melatonin and 6-sulfatoxymelatonin rhythms and self-selected sleep times was abnormal. A laboratory investigation indicated that she was sensitive to bright light as a circadian synchronizer. MRI and brain CT scans were normal, but microscopic brain damage in the vicinity of the suprachiasmatic… 
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