[Experimental analysis of a perceptual disturbance in schizophrenia. Desynchronization of hand-movements with uniform acoustic frequency (author's transl)].

1. In contrast to healthy adult subjects many schizophrenics are unable to drum synchronically with a uniform acoustic frequency. 2. But many schizophrenics can do this when their full attention is diverted by additional light-stimuli. 3. Healthy subjects can be induced to desynchronization, when perception of acoustic frequency is blurred. 4. This desynchronization in healthy subjects can be abolished when their full attention is diverted by additional light-stimuli.