W Klemke

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Five groups of two volunteers lived during four weeks under arctic summer conditions (Spitsbergen) isolated in huts, without time information. They received lithium carbonate or placebo. All showed free-run of their circadian temperature and activity/rest rhythms with periods longer than 24 hours. Under lithium carbonate, a period-lengthening effect can be(More)
Lithium carbonate was administered during a double-blind crossover experiment lasting 8 weeks, involving 11 healthy volunteers. In psychological tests, no deterioration in mood, performance or memory could be shown. Informal diary entries made by the subjects, however, refer to complaints, particularly relating to vegetative functions, more frequently under(More)
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