Purpose: The aim of this study was to examine the influence of caregivers' reports of family-related environmental confusion--which refers to the level of overstimulation in the family home environment due to auditory and nonauditory (i.e., visual and cognitive) noise--on the relation between child temperament and spoken language outcomes in…

Gestures and vocal elements interact from the early stages of language development, but the role of this interaction in the language learning process is not yet completely understood. The aim of this study is to explore gestural accompaniment's influence on the acoustic properties of vocalizations in the transition to first words. Eleven Spanish…

Speech productions of 40 English- and 40 Japanese-speaking children (aged 2-5) were examined and compared with the speech produced by 20 adult speakers (10 speakers per language). Participants were recorded while repeating words that began with "s" and "sh" sounds. Clear language-specific patterns in adults' speech were found,…