Azuma Tamiko
Arizona State University, Tempe, AZ, USA.
Neuropsychology. 2004 Jan;18(1):69-77. doi: 10.1037/0894-4105.18.1.69.
Letter and semantic fluency tasks are often used in neuropsychological assessment and are sensitive to many conditions. Performance is assessed by correct responses and errors, including perseverations. Healthy young adults performed letter and semantic fluency tasks. One group performed these tasks in the conventional manner; 2 other groups performed them while maintaining memory loads. The memory loads consisted either of words from the same category as the fluency task or of words from a different category. The results showed little effect of memory loads on correct responses but significant effects of memory load on perseveration rates: Same-category loads resulted in higher rates, especially in letter fluency. The results are discussed in terms of frontal lobe function in verbal fluency.
字母流畅性和语义流畅性任务常用于神经心理学评估，并且对多种情况敏感。通过正确反应和错误（包括持续性错误）来评估表现。健康的年轻成年人完成了字母流畅性和语义流畅性任务。一组以传统方式完成这些任务；另外两组在保持记忆负荷的情况下完成任务。记忆负荷要么由与流畅性任务相同类别的单词组成，要么由不同类别的单词组成。结果表明，记忆负荷对正确反应影响不大，但对持续性错误率有显著影响：同类别的负荷导致更高的错误率，尤其是在字母流畅性任务中。从额叶在言语流畅性方面的功能对结果进行了讨论。
