Clinical Study on the Development of EEG Basic Rhythms and the Function of So-called Spacial Orientation

The Relationship between Normal and Totally Blind Children

Abstract

The present paper has demonstrated whether there was certain difference or not in the development of the function of so-called spacial orientation between normal and totally blind children, as it is thought, in author's opinion, to be not a central organ to perceive sensory stimuli, but a functional rneclanism to receive stimuli.
On the other hand, in order to analyse the deve lopment of EEG basic rhythms, electroencephalographical survey was held to those children from a view point o f neurophysiological development. For this purp ose, the author applied a series of tests composed of the body naming test, calculation test, finger naming test, right-left discrimination test, Kinsbourine and Warrington's test, Delage modified test, five point test, topographical and spacial orientation test and others.
The res u lts were as follows:
1) There was no significant difference of influences between visual and tactile perception upon this function in both groups.
2) It was found that various plysiological factors played an important role in this function.
3) While this function was integrated and matured with aging, certain personal functions were to be added at any stage and made rapid or sudden progress from 4 to 8 age.
4) This function was not only the central function which received many stimuli from peripheral portions, but also the dynamic function which lead to the conception “ not the perception without the behavior”
5) It was interesting to have observed increase with age of occipital a rhythms in normal children on one hand and of parietal a rhythms in totally blind children on the o ther.
6) It was suggested that the develpment of EEG basic rhythms had relation to the sensori-motor factor including the function of so-called spacial orientation.