CGSC170 Chapter Notes - Chapter 9.2 pt 2: Steven Pinker, David Rumelhart, Connectionism
20 Dec 2019
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Proposed a model of understanding english past tense that fits very well with this analysis. Goes via a symbolic representation of the rule that the past tense is formed by adding ed to the stem of the verb. Not sensitive to the particular phonological form of the verb. It applies rules to whatever input it gets. Goes via an associative memory system that is sensitive to the phonological form of the verb stem. Responsible for storing exceptions to the rule. Classifies and generalizes these exceptions in terms of their phonological similarity. Two routes are in competition with each other. Deals with a verb where the past tense is formed by adding ed . Can be overridden by a strong signal from override system of exposure to the sing vs sang and ring vs rang pairs. Will strengthen the signal for bring vs brang. Still successful in reproducing significant aspects of the learning profile for younger children.
