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While continuing the cycle of studies on the human motor activity during sleep, we examined 12 male patients with schizophrenia, mental retardation and other mental disorders caused by damage and dysfunction of the brain or somatic illness. Data on motor activity during sleep were obtained using an information-analytical system with registration of the number of movements, the maximum magnitude of jerk and the coefficient of motor activity. The nosological specificity of motor activity during sleep at night in patients with schizophrenia, mental retardation and other mental disorders caused by damage and dysfunction of the brain or somatic illness was revealed.

In order to monitor the state of patients in the psychotherapy department by assessing motor activity during their night sleep, we examined 16 patients of both sexes with diagnosis of a depressive episode and neurotic, stress-related and somatoform disorders. Data on motor activity during sleep were obtained and processed using a special information-analytical system with the following parameters: the number of movements, the maximum jerk magnitude and the coefficient of motor activity. It showed a high efficiency of monitoring the condition of patients in comparison with healthy people by assessing motor activity during their night sleep.

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