M. Dietzel

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The effects of biologically active light (BL) on subjective and objective quality of sleep and awakening, as well as circadian rhythms in cortisol, temperature and well-being were studied in 10 hospitalized normal female volunteers as compared with partial sleep deprivation (PSD). After 2 adaption days, three 24-hour periods were recorded before (baseline),(More)
Objective and subjective quality of sleep and awakening as well as circadian rhythms in cortisol, temperature and well-being were investigated in 10 female hospitalized depressed patients diagnosed as major depressive disorders according to RDC criteria before (baseline), during (intervention) and after (recovery) treatment with biologically active or(More)
The study was carried out to show how bright light affects intellectual mnestic performance alertness, mood and psychophysiological variables in order to understand the mechanism of bright light which is still unclear. 15 healthy normal volunteers (8 males, 7 females) aged 22-34 years (mean 27) participated in the study. Exposure to bright light (2500 lux)(More)
We investigated 37 chronic schizophrenic patients with two objective rating scales (AMDP and Brief Psychiatric Rating Scale; BPRS) and compared the questioned symptoms with the Frankfurter Beschwerde Fragebogen (FBF), a questionnaire for subjective complaints which are close to the uncharacteristic 'basic' symptoms of schizophrenic patients. It was pointed(More)
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