title: Hand preference for pointing gestures and bimanual manipulation around the vocabulary spurt period.
abstract: This study investigated the development of hand preference for bimanual manipulative activities and pointing gestures in toddlers observed longitudinally over a 5-month period, in relation to language acquisition. The lexical spurt was found to be accompanied by an increase in the right-sided bias for pointing but not for manipulation. Moreover, results revealed a significant correlation between hand preference for imperative pointing gestures and manipulative activities in children who did not experience the lexical spurt during the observational period. By contrast, measures of handedness for declarative pointing were never correlated with those of handedness for manipulation. This study illustrates the complex relationship between handedness and language development and emphasizes the need to take the different functions of pointing gestures into account.
authors: Research Center in the Psychology of Cognition, Language, and Emotion, Department of Psychology, Aix-Marseille University, 13621 Aix-en-Provence Cedex 1, France.
authors: Hélène
authors: H
authors: Cochet
authors: Marianne
authors: M
authors: Jover
authors: Jacques
authors: J
authors: Vauclair