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Article: Prior knowledge enhances the category dimensionality effect
- Article from:
- Memory & Cognition
- Article date:
- March 1, 2008
- Author:
CopyrightCopyright Psychonomic Society, Inc. Mar 2008. Provided by ProQuest LLC. (Hide copyright information)
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A study of the combined influence of prior knowledge and stimulus dimensionality on category learning was conducted. Subjects learned category structures with the same number of necessary dimensions but with more or fewer additional, redundant dimensions and with either knowledge-related or knowl
edge-unrelated features. Minimal-learning models predict that all subjects, regardless of condition, either should learn the same number of dimensions or should respond more slowly to each dimension. Despite similar learning rates and response times, subjects learned more features in the high-dimensional than in the low-dimensional condition. Furthermore, prior knowledge interacted with ...