title: The relationship of alpha and delta EEG frequencies to pain and mood in 'fibrositis' patients treated with chlorpromazine and L-tryptophan.
abstract: Aspects of sleep stage evaluation and analysis of alpha and delta EEG frequencies in sleep were shown to be related to musculo-skeletal pain and mood disturbance in patients with 'fibrositis syndrome'. Patients were treated at bedtime for 3 weeks with either chlorpromazine, 100 mg (8 patients), or L-tryptophan, 5 g (7 patients). Chlorpromazine, but not L-tryptophan, was associated with increased slow wave sleep and amelioration of pain and mood symptoms. Mean percent time/min or mean percent power/min of alpha frequency during NREM and REM sleep corrlated with overnight increase in pain measures, hostility, and decrease in energy. On the other hand, mean percent time/min of delta in NREM sleep was related to overnight decrease in pain and mean percent delta power/min was associated with decreased anxiety and hostility, and increased energy.
mesh_terms: D000328:Adult; D000368:Aged; D000513:Alpha Rhythm; D001007:Anxiety / Q000503:physiopathology; D002746:Chlorpromazine / Q000627:therapeutic use*; D003700:Delta Rhythm; D004569:Electroencephalography; D004644:Emotions / Q000502:physiology*; D005260:Female; D005356:Fibromyalgia / Q000188:drug therapy* / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000503:physiopathology*; D012894:Sleep Stages / Q000187:drug effects; D014364:Tryptophan / Q000627:therapeutic use*
chemical_list: D014364:Tryptophan; D002746:Chlorpromazine