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Petitto And Marentette 1991

Satisfactory Essays

Petitto & Marentette (1991) provides key evidence to suggest that ‘babbling’ is in fact a brain-based language capacity which enhances with maturity and not a speech-based phenomenon based on physical vocal maturation [1]. To reach this conclusion Petitto & Marentette (1991) conducted an experiment in which they analysed the vocal babbling of infants as well as the manual babbling of deaf infants [1]. The relevance of this decision is based on the fact, that sign language, like all other languages, is developed through language acquisition, thus if there is no correlation between manual babbling and vocal babbling, this would strength the stance that babbling is the product of physical maturation. The study, however, did conclude that manual

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