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  • Title: Switching and clustering in verbal fluency tasks throughout childhood.
    Author: Kave G, Kigel S, Kochva R.
    Journal: J Clin Exp Neuropsychol; 2008 Apr; 30(3):349-59. PubMed ID: 17852609.
    Abstract:
    An analysis of switching and clustering in fluency tasks was conducted on data from 180 Hebrew speakers aged 8-29. On the phonemic task, total output, number of switches, and number of clusters differed significantly across age groups and increased with age, whereas mean cluster size did not. On the semantic task, all measures increased with age. No differences were found between adolescents and adults on the phonemic variables, but adults provided more switches on the semantic task than did adolescents. The results suggest that the development of word retrieval might be more dependent on maturation of executive search strategies than on lexical enrichment.
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