Building and exploring (speech) categories in early infancy  

Francisco Lacerda

Journal of the Acoustical Society of America, 106 (1999): 2254 (Abstract)
 

ABSTRACT

This paper will report the results from a speech perception study assessing the impact of correlated audio and visual information on category formation in infancy. The amount of speech and of visual information as well as the degree of correlation between the two modalities is systematically varied across subjects and will be subsequently related to the infants' success in picking up the categories implicit in the multisensory stimuli. Also the infants' active versus passive role during the conditioning phase is experimentally assessed in an attempt to study how attentional effects may influence the early stages of speech category formation. The study is designed to provide experimental evidence for the notion of emergent phonology and the exemplar-based approach presented by Lacerda (1998) at the 135th ASA meeting, Seattle.


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