LING 355 Lecture Notes - Lecture 29: Speech-Language Pathology, Intellectual Disability, Coreference
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Gopnik and colleagues: children with sli lack rules for productive formation of inflected forms. Instead, they must learn all forms by heart, as unanalyzed wholes. In other words, regular inflection is represented in the same way as irregular inflection for these children. For example, walked is not analyzed as walk+ed but as a simple form, similar to ran. ) Children with sli should be more accurate with forms that are more frequent in the input. The more you hear a verb form, the more likely you are having it listed in your mental lexicon. This goes for regular as well as irregular verbs. In elicited production tasks (wug-tests), suppliance of past tense forms for novel verbs and plural forms for novel nouns is significantly lower for children with sli than for normal (age-matched) controls. Regardless of dialect, children with sli have a lot of difficulty with novel words. They are unable to produce past tense in a wug test.
