知识与财富的链接
目的:探查恢复期失语症患者左外侧裂后部(PPR)经颅直流电刺激(tDCS)对图命名及听理解的作用。方法:采用成组前后对照实验设计,治疗分为A、B期。A期为4周语言治疗,B期为4周tDCS治疗与语言治疗。tDCS刺激电极阳极位于左侧外侧裂后部周围区,阴极位于右肩。刺激强度1.1mA,每次20min。7例脑卒中后失语症患者在每个治疗期前后进行汉语失语症心理语言评价(PACA)。结果:7例患者经4周A期语言治疗后,图命名和听觉词—图匹配成绩未见显著改变;经4周tDCS与语言治疗后,患者的图命名和听觉词—图匹配成绩显著提高(图命名成绩平均提高64%,听觉词—图匹配成绩平均提高15%)。结论:tDCS阳极刺激左外侧裂后部周围区可以提高恢复期失语症患者的图命名和听觉词—图匹配任务的正确率,其治疗机制可能是由于阳极刺激提高了脑损伤周围区的神经元兴奋性,促进了语言功能的代偿。tDCS为失语症提供了一种新的有效的治疗技术。
Objective:To investigate the effects of transcranial direct current stimulation(tDCS) over left posterior perisylvian region(PPR) on aphasics' picture naming and auditory word comprehension.Method:Treatment procedure was divided into phase A and phase B.First routine four-week language training(30min 0d and 5d a week) was applied in phase A,then routine language training combined with tDCS(1.1mA,20min) were implemented in phase B.Anode electrode was placed over PPR,while cathode electrode over right shoulde...
