Abstract
The psychophysiological cost of activity was determined in 5- to 14-year-old children and adolescents (n = 612) by correlating the performance of intense information load with the value of autonomic shifts in the course of the test. It was shown that the psychophysiological cost of information load in the state of functional comfort (self-determined speed) decreased 2.2- to 5.4-fold in the period from 5–6 to 13–14 years of age and the psychophysiological cost of intense intellectual activity with the maximum speed under the conditions of a time deficit (the maximum speed) decreased 1.2- to 4-fold. The greatest changes in the psychophysiological cost of intense intellectual activity were observed at the beginning of regular schooling and during puberty. The data indicate the need for a continuous search for new, efficient, and more physiologically adequate ways of control of the process of training and education taking into consideration the psychophysiological cost of intense academic activity in different periods of ontogeny and ensuring a beneficial effect of educational technologies on the health and development of schoolchildren.
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