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  • Title: Prosodic patterns in Hebrew child-directed speech.
    Author: Segal O, Nir-Sagiv B, Kishon-Rabin L, Ravid D.
    Journal: J Child Lang; 2009 Jun; 36(3):629-56. PubMed ID: 19006600.
    Abstract:
    The study examines prosodic characteristics of Hebrew speech directed to children between 0 ; 9-3 ; 0 years, based on longitudinal samples of 228,946 tokens (8,075 types). The distribution of prosodic patterns - the number of syllables and stress patterns - is analyzed across three lexical categories, distinguishing not only between open- and closed-class items, but also between these two categories and a third, innovative, class, referred to as between-class items. Results indicate that Hebrew CDS consists mainly of mono- and bisyllabic words, with differences between lexical categories; and that the most common stress pattern is word-final, with parallel distributions found for all categories. Additional analyses showed that verbs take word-final stress, but nouns are both trochaic and iambic. Finally, a developmental analysis indicates a significant increase in the number of iambic words in CDS. These findings have clear implications regarding the use of prosody for word segmentation and assignment of lexical class in infancy.
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