Effects of similarity and experience on discrimination learning: A nonassociative connectionist model of perceptual learning
Effects of similarity and experience on discrimination learning: A nonassociative connectionist model of perceptual learning
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DOI：
10.1037/0097-7403.25.3.308
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发表时间：
1999-07-01
期刊：
影响因子：
--
通讯作者：
Saksida, LM
中科院分区：
文献类型：
--
作者：
Saksida, LM
本文描述了一种新颖的知觉学习（PL）连接主义模型，该模型提供了非联想分化的机制（J. J.吉布森和E.吉布森，1955年）。该模型首先假设两个过程--一个降低可联想性，一个增加可辨别性--在预暴露过程中起作用（S。查普和G公司Hall，1981）。与其他模型（例如，I. P. L. McLaren，H. Kaye，& N. J. Macklett，1989），在目前的模型中，这些过程的机制与联想学习的结构模型是兼容的。一组模拟表明，本模型可以解释关键PL现象，如曝光学习和歧视的相似性的影响。它也表明，该模型可以解释矛盾的结果，即预暴露于刺激可以促进或损害随后的歧视学习。由该模型所作的预测进行了讨论，有关现存的理论PL。
This article describes a novel connectionist model of perceptual learning (PL) that provides a mechanism for nonassociative differentiation (J. J. Gibson & E. J. Gibson, 1955). The model begins with the assumption that 2 processes-1 that decreases associability and 1 that increases discriminability-operate during preexposure (S. Champ & G. Hall, 1981). In contrast to other models (e.g., I. P. L. McLaren, H. Kaye, & N. J. Mackintosh, 1989), in the current model the mechanisms for these processes are compatible with a configural model of associative learning. A set of simulations demonstrates that the present model can account for critical PL phenomena such as exposure learning and effects of similarity on discrimination. It is also shown that the model can explain the paradoxical result that preexposure to stimuli can either facilitate or impair subsequent discrimination learning. Predictions made by the model are discussed in relation to extant theories of PL.