The trail making test, part B: cognitive flexibility or ability to maintain set?
The trail making test, part B: cognitive flexibility or ability to maintain set?
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DOI：
10.1207/s15324826an0902_5
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发表时间：
2002-01-01
影响因子：
--
通讯作者：
Windham, Whitney K
中科院分区：
文献类型：
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作者：
Kortte, Kathleen Bechtold;Horner, Michael David;Windham, Whitney K
连线测验（TMT）是一种对多个认知领域的损伤敏感的成熟测试。关于TMT部分B对患者提出的认知要求是否高于TMT部分A的要求，一直存在模糊性。特别是，认知灵活性和维持复杂反应集的能力一直是2个相互竞争的假设。本研究初步探讨了这两种能力中哪一种主要有助于B部分的表现。共有121名临床转诊的退伍军人事务部患者接受了TMT以及其他执行和其他认知功能测试。使用回归分析来检查哪些测试预测部分B性能高于部分A性能。研究结果初步支持了TMT的B部分表现对认知灵活性（操作化为威斯康星州卡片分类测验[WCST]，坚持错误百分比）比对维持集合能力（操作化为WCST，未能维持集合）更敏感的观点。
The Trail Making Test (TMT) is a well-established test sensitive to impairment in multiple cognitive domains. There has been ambiguity about which cognitive demands are placed on the patient by TMT Part B over and above those required to perform TMT Part A. In particular, cognitive flexibility and ability to maintain a complex response set have been 2 competing hypotheses. This study preliminarily examined which of these 2 abilities primarily contributes to Part B performance. A total of 121 clinically referred Veterans Affairs patients were administered the TMT, as well as other tests of executive and other cognitive functions. Regression analyses were used to examine which tests predicted Part B performance above and beyond Part A performance. The results provide preliminary support for TMT Part B performance being more sensitive to cognitiveflexibility (operationalized as Wisconsin Card Sorting Test [WCST], percent perseverative errors) than ability to maintain set (operationalized as WCST, failure to maintain set).