Objective To investigate the effect of transcranial electric stimulation on Chinese characters pronunciation,form and meaning processing.Methods 15 subjects of the frontal gyrus region of transcranial direct current stimulation(transcranial direct current stimulation,tDCS),the completion of the shape, pronunciation,word is pseudo judgment task,the difference between before and after the test between the measured and the shape,pronunciation,word of pseudo.Results(1)after the stimulation of pronunciation judgment accuracy group(87.27+10.31%),a decision group correct rate (95.31+5.54%) and pseudo word group judgment accuracy rate (92.16+7.12%) were better than those before stimulation with sound judgment accuracy rate(85.23+6.48%),group decision based group(91.29+7.39%),the correct rate of pseudo word judgment accuracy (88.63+8.15% group),the difference was significant(P<0.05);(2)on the reaction time,after stimulation group (819.17+74.44),sound judgment(634.22+53.84),group decision based pseudo word judgment group (646.56+49.32) were faster than before stimulation pronunciation judgment group(916.00+119.80),(709.58+88.85),group decision based pseudo word judgment group(738.27+168.59),the difference was statistically significant (P<0.05).Conclusion tDCS can promote the cognitive process of music,form and meaning of Chinese characters to a certain extent.%目的 探讨经颅直流电刺激对汉字字音、字形、字义加工的影响.方法 通过对15名被试的额中回区域进行经颅直流电刺激(transcranial direct current stimulation,tDCS),完成对字音、字形、伪字是与否的判断任务,检验前后测之间和字音、字形、伪字之间的差异性.结果 (1)刺激后字音判断组正确率(87.27+10.31%)、字形判断组正确率(95.31+5.54%)、伪字判断组正确率(92.16+7.12%)均优于刺激前同字音判断组正确率(85.23+6.48%)、字形判断组正确率(91.29+7.39%)、伪字判断组正确率(88.63+8.15%),差异具有显著性(P<0.05);(2)在反应时上,刺激后字音判断组(819.17+74.44)、字形判断组(634.22+53.84)、伪字判断组(646.56+49.32)分别快于刺激前字音判断组(916.00+119.80)、字形判断组(709.58+88.85)、伪字判断组(738.27+168.59),差异具有统计学意义(P<0.05).结论 tDCS在一定程度上对汉字音、形、义的认知过程具有促进作用.
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