Somnopolygraphic recordings were registered from 29 patients with AIDS, their age ranged from 20 to 55 years (mean: 40.9; median: 44). The patients represent the full range of cerebral disintegration representing the picture of a progressing destruction of physiological sleep organization. Some disturbances begin quite early and progress successively, such as the reduction of REM- and delta-sleep as well as the reduction of sleep spindle- and K-complex-densities. Other changes are not manifest until intellectual capabilities break down; they occur massively such as the shortening of real sleep time and the reduction of sleep stage 2 with a simultaneous increase in waking time. It is remarkable that despite the enormous REM reduction there is no suppression of REM periods corresponding to "REM sine REM". REM periods become very short at an early stage; this is not only because the patients awake more frequently and earlier from their dream periods.

Erfahrungen und Befunde zu EEG-Veränderungen bei Patienten mit Erworbenem Immunschwächesyndrom liegen gegenwärtig nur in begrenztem Umfang vor [1, 2]. In der vorliegenden Studie werden erste Ergebnisse der elektroenzephalographischen Untersuchung des Schlafes von Patienten mit ZNS-Manifestation der Erkrankung vorgestellt.

Somnopolygraphic recordings were registered from 29 patients with AIDS, their age ranged from 20 to 55 years (mean: 40,9; median: 44). The patients represent the full range of cerebral disintegration representing the picture of a progressing destruction of physiological sleep organization.

The construction and use of sterilizable plastic Leonard jar assemblies is described. The assemblies, which are used for the aseptic growth of plants during the study of Rhizobium or other soil organisms, are made from commercial plastic bottles which are easily cut, able to withstand repeated sterilization, and are unbreakable.