汉语失语症患者的语言大脑优势侧与利手的关系

Handedness and dominant hemisphere laterality of Chinese language in aphasics

对309例急性期(3个月以内)脑梗塞(225例)和脑出血(84例)患者进行了失语症检查及利手的测定,结果为语言正常患者170例(占55.02％),确诊为各型(10型)失语症的患者139例(占44.98％)。失语症患者中右利手134例(96.40％),非右利手5例(3.60％)。左大脑半球病灶失语症患者136例(97.84％),其中右利手者131例(94.24％),非右利手者5例(3.60％)。右大脑半球病灶右利手者仅3例(2.16％),为交叉性失语。表明中国汉人无论是右利手还是非有利手,其语言优势侧仍以在左大脑半球者为多数,与西方人无根本差别。

309 cases of acute (within 3 months) cerebral infarction (225 cases) and cerebral hemorrhage (8,1 cases) were studied by Aphasia Examination. All cases were defined by CT scan to determine the located side and site of the lesions and by Handedness Test to divide into right-handedness and nonright-handedness.Result: 170 cases had normal language function (55.02%), 139 cases had aphasia divided into 10 types (44.98%). Among aphasics, 134 cases (96.40%) were of right-handedness, 5 cases (3.60%) of non- right- handedness. In 136 aphasics with left hemisphere lesions (97.84 %), 131 cases (94.24%) were of right-handedness, 5 cases (3.60%) of non-right-handedness. Only 3 aphasics (2.16%) had right hemisphere lesions and all of right-handedness which were called Crossed Aphasia.Both hemispheres took part in the language activities of the human being, but there are dominances of different language aspects on each side. Whether right-handedness or non- right- handedness, the language dominant laterality in the large majority of Chinese or Chinese aphasics was the left hemisphere. Thus, there was no fundamental differences between Westerner and Chinese.