Kearns K P, Salmon S J
J Speech Hear Disord. 1984 May;49(2):152-63. doi: 10.1044/jshd.4902.152.
Two subjects with chronic Broca's aphasia were taught to produce third person singular auxiliary is in sentence contexts to determine if is production would generalize to untrained auxiliary is items and to copula is contexts. A single subject (ABAB) reversal design was employed. Results revealed that training a few exemplars of the present tense auxiliary is resulted in generalized responding to untrained auxiliary is and copula is plus predicate adjective items. Generalized responding to untrained copula is plus predicate nominative and locative items was marked by individual variability. Although auxiliary and copula is verb production was maintained on 2- and 6-week follow-up probes, transfer to spontaneous speech was negligible. The results were interpreted as providing partial support for the existence of a functional or generative response class between verbal auxiliary and the copula is verbs.
两名患有慢性布罗卡失语症的受试者被教导在句子语境中产出第三人称单数助动词“is”，以确定“is”的产出是否会推广到未训练的助动词“is”项目以及系动词“is”的语境中。采用了单一受试者（ABAB）反转设计。结果显示，对现在时助动词“is”的几个示例进行训练，会导致对未训练的助动词“is”、系动词“is”以及谓语形容词项目产生泛化反应。对未训练的系动词“is”加上谓语主格和方位项目的泛化反应存在个体差异。尽管在2周和6周的随访测试中，助动词和系动词“is”的产出得以维持，但向自发言语的迁移微乎其微。这些结果被解释为为动词助动词和系动词“is”之间存在功能或生成性反应类别提供了部分支持。
