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首页> 外文期刊>Applied neuropsychology. Adult >Ecologically valid assessment of executive dysfunction using a novel virtual reality task in patients with acquired brain injury
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Ecologically valid assessment of executive dysfunction using a novel virtual reality task in patients with acquired brain injury

机译：使用新型虚拟现实任务对获得性脑损伤患者执行功能障碍的生态学评估

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The current investigation sought to further establish the psychometric properties and ecological validity of the Multitasking in the City Test (MCT) in a clinical population. Ecological validity was addressed via correlational analyses between performance on this test and a subjective measure of everyday executive functioning (Frontal Systems Behavior Scale; FrSBe). The sample was composed of 13 individuals (11 males) who suffered a stroke or traumatic brain injury. A neuropsychological test battery consisting of the MCT and common executive and nonexecutive measures was administered. The only executive function tests that were significantly related to the FrSBe were the MCT and a semantic fluency test. Compared with a sample of normal participants, the patient group produced better plans but completed fewer tasks on the MCT. Patients made similar types of errors as normals, although some of these errors occurred more frequently in the patient sample. This study demonstrated the ecological validity of the MCT and suggested that patients can be differentiated from healthy individuals by quantitative (i.e., number of errors) rather than qualitative (i.e., type of errors) aspects of performance. Further interpretation of MCT performance and comparison with existing executive function tests is discussed.
机译：当前的调查试图进一步确定临床人群中城市测试中多任务处理的心理计量学特性和生态有效性。生态效度通过该测试的绩效与日常执行功能的主观度量（正面系统行为量表; FrSBe）之间的相关分析来解决。该样本由遭受中风或脑外伤的13个人（11位男性）组成。进行了由MCT以及常见的执行和非执行措施组成的神经心理测验。与FrSBe密切相关的唯一执行功能测试是MCT和语义流利度测试。与正常参与者的样本相比，患者组制定了更好的计划，但在MCT上完成的任务较少。尽管一些错误在患者样本中发生的频率更高，但患者的错误类型与正常人相似。这项研究证明了MCT的生态有效性，并建议可以通过定量（即错误数量）而非定性（即错误类型）方面的表现将患者与健康个体区分开。讨论了MCT性能的进一步解释以及与现有执行功能测试的比较。

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