It is known that the first 3 weeks of the child is able to issue 3 cry differing structurally and functionally: hunger cry; cry of pain - response to pain sensation; deprivation cry - the answer to the deprivation of something, such as take a pacifier that a child actively sucks
In the third week of life there is a new signal - a cry of loneliness, boredom, to attract attention, which reflects not only the physiological needs, as is social character.
By 3-4 months of vocalizations - this includes all voice manifestations - serve as a means of interpersonal interaction with adults.
The child begins to actively pay attention to the voice of others, responding adequately response to facial expressions and tone of voice, showing attempts to play and smile vocalizations.
In the first 6 months have seen a steady increase in voice activity, the most effective method of stimulating it is to communicate with adults. Experts say the "Gulen" as a very important point for the formation of speech breath.
The process of mastering intonation starts the child on the stage of "Gulen", and by the end of the first years of life on the basis of intonation adult language system begins to master sound system speech. But the tone of the question is formed only in the second year of life.
By this age, the child develops the ability to modulate the voice of different emotions going on sharp quantitative increase of various sound combinations lepetnoy speech and the subsequent occurrence of the first words.