Letter and category fluency in patients with frontal lobe lesions
Letter and category fluency in patients with frontal lobe lesions
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DOI：
10.1037/0894-4105.12.2.259
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发表时间：
1998-04-01
期刊：
影响因子：
2.4
通讯作者：
Shimamura, AP
中科院分区：
文献类型：
--
作者：
Baldo, JV;Shimamura, AP
本研究检验了这样一个假设：额叶损伤患者在字母流畅性测试中表现受损，但在类别流畅性测试中不受影响。这一假设是由莫斯科维奇（1994年）提出的，其依据是对年轻正常参与者进行的一系列认知研究。一组患有外侧前额叶损伤的患者和年龄匹配的对照组接受了两项语言流畅性测试，即FAS任务和一项使用语义类别作为提示（例如动物）的类别流畅性任务。额叶损伤患者在字母流畅性和类别流畅性测试中产生的项目都比对照组少。这种效应与流畅性测试的类型无关，这表明额叶更普遍地参与语言流畅性。此外，这一研究结果模式，以及该患者组之前在自由回忆和远期提取方面受损的结果，表明额叶损伤患者不能有效地组织和制定提取策略。
This study examines the hypothesis that patients with frontal lobe lesions are impaired on tests of letter but not category fluency. This hypothesis was proposed by Moscovitch (1994), based on a series of cognitive studies with young. normal participants. A group of patients with lateral prefrontal lesions and age-matched controls were tested on 2 tests of verbal fluency, the FAS task and a category fluency task that used semantic categories as cues (e.g., animals). Patients with frontal lobe lesions generated fewer items than controls on both letter and category fluency. This effect did not interact with the type of fluency test, suggesting that the frontal lobes are more generally involved in verbal fluency. Moreover, this pattern of findings, along with previous results of impaired free recall and remote retrieval in this patient group, suggests that patients with frontal lobe lesions do not efficiently organize and develop retrieval strategies.