Resumen de Lexical activation effects on children's sentence planning and production

Monique Charest, Judith R. Johnston, Jeff A. Small

• We investigated the relationship between lexical activation and syntactic planning in children's sentences. Four- and 7-year-old children described transitive scenes following patient-related prime pictures and control pictures. We examined syntactic choices, and compared onset latency, sentence length, and dysfluency rates for active transitive sentences in the two conditions. Early activation of the patient in the primed condition did not lead to the production of patient-subject sentences, but it did have consequences for active transitive sentence production. Namely, onset latencies were longer and sentences were shorter in the primed condition. Dysfluency rates did not differ between the two conditions. Correlation analyses revealed a stronger pattern of association between working memory scores and language variables in the patient-primed condition. The results indicate that conflicts between lexical activation order and syntactic plans are a source of processing difficulty during children's sentence production.