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左颞叶或双侧颞叶癫痫患者的视觉与听觉命名

Visual and auditory naming in patients with left or bilateral temporal lobe epilepsy.

作者信息

Bell Brian D, Seidenberg Michael, Hermann Bruce P, Douville Kelli

机构信息

Department of Neurology, University of Wisconsin, 600 Highland Avenue, Madison, WI 53792, USA.

出版信息

Epilepsy Res. 2003 Jun-Jul;55(1-2):29-37. doi: 10.1016/s0920-1211(03)00110-4.

Abstract

Impairment on visual naming tests is relatively common among temporal lobe epilepsy (TLE) patients. Recent reports suggested that the ability to name objects on the basis of their descriptions is an even more sensitive and perhaps more ecologically valid measure of naming problems among left hemisphere TLE patients. To further explore the nature of dysnomia in TLE, the current study assessed a group of patients with either left or bilateral TLE (n=16) and a group of healthy controls (n=11) on computerized measures of naming to description or auditory naming (AN) and visual naming (VN). Both speed and accuracy scores on AN distinguished patients from controls better than VN scores. There was a trend for AN speed, but not other naming test variables, to be associated with self-reported word finding problems. AN speed and accuracy, but not VN scores, correlated significantly with a broad range of other cognitive test scores. In summary, AN speed and accuracy are sensitive indexes of cognitive dysfunction in TLE patients. AN may be an appropriate analogue of the word finding demands of conversational speech because of its multiple neuropsychological demands. These results provide further evidence of the potential value of AN assessment in TLE patients. Further study of the cognitive processes required during AN, its relation to word finding problems in discourse, and the effect of anterior temporal lobectomy on this ability is warranted.

摘要

在颞叶癫痫(TLE)患者中,视觉命名测试受损相对常见。最近的报告表明,根据物体描述进行命名的能力是衡量左半球TLE患者命名问题的一种更敏感且可能更具生态学效度的指标。为了进一步探究TLE中命名障碍的本质,本研究对一组左颞叶或双侧颞叶癫痫患者(n = 16)和一组健康对照者(n = 11)进行了基于计算机的描述性命名或听觉命名(AN)及视觉命名(VN)测量。与VN分数相比,AN的速度和准确性分数在区分患者和对照者方面表现更佳。AN速度存在一种趋势,即与自我报告的找词困难相关,而其他命名测试变量则不然。AN的速度和准确性与广泛的其他认知测试分数显著相关,而VN分数则不然。总之,AN速度和准确性是TLE患者认知功能障碍的敏感指标。由于AN具有多种神经心理学要求,它可能是对话言语中找词需求的合适模拟指标。这些结果进一步证明了AN评估在TLE患者中的潜在价值。有必要进一步研究AN过程中所需的认知过程、它与话语中找词困难的关系以及颞叶前部切除术对该能力的影响。

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