ABSTRACT
Among the most frequent developmental deviations in infants who are at “psychological risk” is delay in the acquisition of expressive language. Expressive language usually begins to emerge during the middle of the second year, following the period of receptive language acquisition. L. Stone proposed that transformation of oral aggression facilitates the emergence of speech; oral cannibalistic fantasies that accompany the onset of teething are gradually deployed from mouth and teeth to hand activities under normal circumstances, leaving the mouth free for the development of the function of speech. Among the most frequent developmental deviations in infants who are at psychological risk is delay in the acquisition of expressive language, commonly known as speech. Expressive language usually begins to emerge during the middle of the second year, following the period of receptive language acquisition. While many factors undoubtedly influence communicate process of language acquisition (constitutional endowment, language exposure, the presence of siblings).
