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B N Ryzhov

Publications and source records attributed to B N Ryzhov.

4 recordsLinked to original sources
PubMedDate not supplied

[Information-activation relations and mental work capacity of operators].

This paper presents the results of studying diagnostic potentials of the method used to assess mental performance of operators based on a combined application of the information carrying capacity and psychophysiological expenditures of man. Three groups of operators (45 subjects) that differed in their health status and motivation when performing sensorimotor tests were examined. Psychophysiological cost was measured with respect to autonomic responses (heart rate, respiration frequency, minute respiration volume, arm temperature) combined into an integrated parameter of psychic stress. It was found that the extremes of the relationship between information and activation parameters were invariant. The data obtained suggest that the information-activation relationship may be used to advantage in the clinical and physiological expertise of operators.

Aerospace Medicine↗
PubMedDate not supplied

[The functional comfort zone for a human operator controlling a dynamic object].

Objective evaluation of the psychic strain of six operators who performed multiparameter compensatory tracking of the moving object helped to identify the zone of changes of its basic parameters. The control within this zone required a minimum psychophysiological cost (zone of functional comfort). The control beyond this zone was associated either with information overload or with a dramatic increase of the risk of failure. In five operators this led to a significant aggravation of the psychic strain. This study has shown that special identification of the zone of functional comfort in the design of data display devices may be a method of optimizing man's work in the ergatic systems.

Adult↗