THE EFFECT OF POSTERIOR CEREBRAL PULMONARY DIRECT ELECTRICAL STIMULATION (TDCS) ON IMPROVING SPATIAL, VISUAL, AND VERBAL PERCEPTUAL ABILITIES

Direct electrical stimulation of the brain is a therapeutic technique that can be
effective in improving visual, verbal, and spatial perception. The present study investigated the effect
of direct electrical stimulation (tDCS) of the posterior parietal cortex on improving spatial, visual, and
verbal perceptual abilities.
Materials & Methods: In this quasi-experimental study, the statistical population of the study consisted
of all students of Shahid Beheshti University who were studying in the academic year 2017-18. Among
them, 30 subjects were selected by purposive non-random sampling and received direct intervention of
posterior parietal cortex. Mental rotation test and Parsi abstract reasoning test were used to measure
spatial-visual perception and verbal perception. Data were analyzed using descriptive and inferential
statistical methods including one-factor analysis of variance with emphasis on study within the subjects.
Results: The results showed that tDCS of the posterior parietal cortex improves spatial, visual (P <0.01)
(F = 19.61) and verbal (P <0.01) (F = 73.91) perceptual abilities.
Conclusion: It is suggested that the results of this study be used in effectiveness and educational
programs.
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