Resumen de Testing the cognitive load hypothesis: repair rates and usage in a bilingual community
It has been assumed that bilingual speakers have a heavier cognitive load than monolinguals, which may be responsible for language change such as simplification, overgeneralization, transfer and code-switching. While the cognitive load hypothesis is interesting, the hypothesis has not been empirically tested using naturally occurring speech. Using data from a Spanish/English bilingual community, this study operationalizes and tests the cognitive load hypothesis by studying disfluencies in two groups of Spanish speakers with varying degrees of English proficiency. Specifically, truncated utterances and the mechanisms of linguistic repair involved in fixing these disfluencies are examined. The results show measurable differences between the two groups. The group of speakers with higher bilingual proficiency, who are predicted to have a heavier cognitive load, shows a significantly higher rate of repair; additionally the syntactic patterns and types of repair are significantly different between the more bilingual and the less bilingual speakers, suggesting that they use repair in divergent ways. There is not sufficient evidence, however, to conclude that the more bilingual speakers have a higher cognitive load.
