International Journal of Educational Policy Research and Review
Vol.2 (2), pp. 17-24 March, 2015
Available online at https://www.journalissues.org/IJEPRR/
Article ID:EPRR,15/05/08 pages
Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.
Original Research Article
Changes in the dynamics of latent periods of simple sensorimotor responses throughout the academic year in Moscow schoolchildren over 10 years
Nataliya B. Pankova1*, Larissa E. Kurneshova2 and Mikhail Yu. Karganov3
1 Department of Health-Educational Technologies, Moscow Institute of Open Education, Moscow, Russian Federation.
2Administration of Moscow Institute of Open Education, Moscow, Russian Federation.
3Laboratory of Physic-Chemical and Environmental Pathophysiology, Research Institute of General Pathology and Pathophysiology, Moscow, Russian Federation.
*Corresponding Author E-mail nbpankova(at)gmail.com
The purpose of our investigation was an assessment of changes in the dynamics of the proportions of latent periods of simple sensorimotor responses to stimuli of different modalities throughout the academic year in Moscow schoolchildren over 10 years. We analyzed latent periods of simple sensorimotor reaction to light and acoustic stimuli in first-and fifth-grade schoolchildren using equipment “computer movements meter “. The proportion of the latent periods of the sensorimotor reaction to stimuli of different modalities was studied in dynamics from the beginning to the end of the school year and in comparison with similar results obtained 10 years ago. Evaluation of statistical significance performed in both time periods using algorithms for the dependent variables (nonparametric Wilcoxon paired test). The frequency of occurrence of different variants was assessed using Fisher exact test. It was found that in first grade children, the latent periods of the reaction to stimuli of different modalities were equal in approximately 50% cases. In one-third cases, the latent periods of the response to acoustic stimulus were longer than to visual stimulus; in modern first graders, unlike their peers 10 years ago, this parameter decreases over the academic year. Similar annual dynamics, even more pronounced, was observed in fifth graders in observations performed 10 years ago. It is concluded that the observed changes reflect shifts in the functional state of child organism (and probably, cognitive capacities) under the effect of new environmental factors, including educational factors. The findings are important in the management of the education system and in the planning of innovations in educational technologies.
Key words: psychomotor integration, sensorimotor reactivity, acoustic stimuli, visual stimuli