The interrelatedness between infants’ communicative gestures and lexicon size: a longitudinal study

Research has shown a close relationship between gestures and language development. In this study, we investigate the cross-lagged relationships between different types of gestures and two lexicon dimensions: number of words produced and comprehended. Information about gestures and lexical development...

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Bibliographic Details
Main Author: Cadime, Irene Maria Dias (author)
Other Authors: Silva, Carla (author), Santos, Sandra Cristina Silva (author), Ribeiro, Iolanda (author), Viana, Fernanda Leopoldina (author)
Format: article
Language:eng
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/1822/50065
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/50065
Description
Summary:Research has shown a close relationship between gestures and language development. In this study, we investigate the cross-lagged relationships between different types of gestures and two lexicon dimensions: number of words produced and comprehended. Information about gestures and lexical development was collected from 48 typically developing infants when these were aged 0;9, 1;0 and 1;3. The European Portuguese version of the MacArthur–Bates Communicative Development Inventory: Words and Gestures (PT CDI:WG) was used. The results indicated that the total number of actions and gestures and the number of early gestures produced at 0;9 and at 1;0 year predicted the number of words comprehended three months later. Actions and gestures’ predictive power of the number of words produced was limited to the 0;9–1;0 year interval. The opposite relationship was not found: word comprehension and production did not predict action and gestures three months later. These results highlight the importance of non-verbal commu- nicative behavior in language development.