[Initial results with bright light (phototherapy) in affective psychoses].

The biological foundations of light-treatment and their relation to neurophysiological and biochemical mechanisms were discussed. We developed an apparatus for treatment and report of first experiences in affective psychosis. In addition to a decrease of depressivity and anxiety we found an unequivocal tendency to normalization of sleep-behaviour. The farther clinical and paraclinical investigations has to show the position of this method of treatment in the total conception of a biological therapy.