Comparative analysis of qualitative verbal fluency performance in normal elderly and demented populations
Comparative analysis of qualitative verbal fluency performance in normal elderly and demented populations
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DOI：
10.1076/jcen.21.4.425.890
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发表时间：
1999-08-01
影响因子：
2.2
通讯作者：
Cullum, CM
中科院分区：
文献类型：
--
作者：
Epker, MO;Lacritz, LH;Cullum, CM
语言流畅性任务通常用于评估已知或疑似痴呆患者。虽然总的词生产往往是分析，较少关注已支付给口头流畅性表现的定性方面。本研究的目的是研究的诊断效用的定性评分技术的语义和音素流畅性任务的个人与阿尔茨海默氏病（AD），帕金森氏病（PD）与无痴呆症，并在一组老年正常对照组（ONC）。除了产生的总单词外，还比较了各组对聚类的使用（即，在子类别内生成的词的比率）和切换（即，集群之间的转移频率）策略，如Troyer et al.（1997 a）最初定义的。在产生的单词总数方面，对照组上级AD和痴呆PD受试者，后者表现相似。一个类似的趋势，发现有关切换和集群分数。没有痴呆的PD患者在语义流畅性方面与ONC组相似，但相对于对照组，所有音素流畅性变量（即，产生的总单词、聚类、切换）。判别函数分析使用的三个流畅性变量显示，总的话是等于或超过其他变量区分组，这表明这些定性的口头流畅性功能可能不会提供显着的额外信息的诊断效用。
Verbal fluency tasks are commonly used in the assessment of patients with known or suspected dementia. Whereas total word production is often analyzed, less attention has been paid to qualitative aspects of verbal fluency performance. The purpose of this study was to examine the diagnostic utility of a qualitative scoring technique for semantic and phonemic fluency tasks in individuals with Alzheimer's disease (AD), Parkinson's disease (PD) with and without dementia, and in a group of older normal controls (ONC). In addition to total words produced, the groups were compared on their use of clustering (i.e., ratio of words generated within subcategories) and switching (i.e., frequency of shifts between clusters) strategies as originally defined by Troyer et al. (1997a). Ln terms of total number of words produced, controls were superior to the AD and demented PD subjects, who performed similarly. A similar trend was found in relation to switching and clustering scores. PD patients without dementia performed similar to the ONC group on semantic fluency, but were impaired relative to controls on all phonemic fluency variables (i.e., total words produced, clustering, switching). Discriminant function analyses using the three fluency variables revealed that total words was equal to or surpassed the other variables in distinguishing the groups, suggesting that these qualitative verbal fluency features may not provide significant additional information in terms of diagnostic utility.