目的探讨经颅直流电刺激(tDCS)对脑卒中后失语症恢复的影响。方法选取2012 年4 月~2013 年1 月本科脑卒中失语症患者20 例。采用A-B设计，A期行tDCS 假刺激+语言治疗10 次(每周5 次)，B期为阳极tDCS+语言治疗10 次(每周5 次)，共4周。B期给予左侧Broca 或Wernicke 区阳极tDCS刺激。在A期、B期前后进行治疗项和非治疗项图命名评价。结果B期治疗项和非治疗项图命名评分差值高于A期(t>3.030, P<0.05)。结论tDCS能够改善脑卒中失语症患者图命名的准确率。

Objective To investigate the effect of transcranial direct current stimulation (tDCS) on aphasia recovery after stroke. Methods From April, 2012 to January, 2013, 20 aphasic patients after stroke were enrolled in an A-B experiment design. During phase A, ten times of sham tDCS and language training (five days a week) were implemented, then ten times language training combined with tDCS (five days a week) were implemented in phase B. The treatment lasted for four weeks. Picture naming was measured for all patients before and after treatment both in phase A and phase B. Results The D-value scores of picture naming before and after treatment were significantly more in phase B than in phase A in both treatment items and non-treatment items (t>3.030, P<0.05). Conclusion tDCS could raise the accuracy of picture naming in patients with aphasia after stroke.