Quantitative modeling of category learning in amnesic patients
Quantitative modeling of category learning in amnesic patients
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DOI：
10.1017/s1355617701711010
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发表时间：
2001-01-01
影响因子：
2.6
通讯作者：
Davis, JD
中科院分区：
文献类型：
--
作者：
Filoteo, JV;Maddox, WT;Davis, JD
使用感知分类任务对两名健忘症患者的类别规则学习进行了检查（例如，Ashby & Gott，1988；Filoteo & Maddox，1999）。进行了传统的基于准确性的分析以及基于定量模型的分析。与基于准确性的分析不同，基于模型的方法使我们能够检查分类规则学习和参与者分类规则的逐次试验应用中的变异性。结果表明，在大量试验中，失忆症患者在学习复杂的非线性规则方面与对照组一样准确。基于模型的分析表明，一般来说，失忆症患者学习了分类规则以及对照组，并像对照组一样一致地应用了他们的规则。测试第二天的分类表现表明，健忘症患者可以在 24 小时内保留分类规则。这些结果表明，健忘症中的大脑区域并未受损。参与类别学习或类别结构的记忆。
Category rule learning was examined in two amnesic patients using the perceptual categorization task (e.g., Ashby & Gott, 1988; Filoteo & Maddox, 1999). Traditional accuracy-based analyses as well as quantitative model-based analyses were performed. Unlike accuracy-based analyses, the model-based approach allowed us to examine both categorization rule learning and variability in the trial-by-trial application of the participant's categorization rule. The results indicated that the amnesic patients were as accurate as the controls in learning a complex, nonlinear rule over a large number of trials. The model-based analysis indicated that, in general, the amnesic patients learned the categorization rule as well as controls and applied their rule as consistently as controls. Categorization performance on a second day of testing revealed that amnesic patients can retain the categorization rule over a 24-h period. These results suggest that the brain regions damaged in amnesia are not. involved in category learning or memory for the category structures.