ISBN-13: 9780805826289 / Angielski / Twarda / 2000 / 448 str.
ISBN-13: 9780805826289 / Angielski / Twarda / 2000 / 448 str.
Recent studies of vocal development in infants have shed new light on old questions of how the speech capacity is founded and how it may have evolved in the human species. Vocalizations in the very first months of life appear to provide previously unrecognized clues to the earliest steps in the process by which language came to exist and the processes by which communicative disorders arise.