A time frame of critical/sensitive periods of language development.
By a focus on three essential elements of language: phonology, semantics, and syntax, a time frame for critical/sensitive periods of language development is presented as a model of central auditory nervous system flexibility. Several studies support the hypothesis that the critical/sensitive period of phonology is from the 6th month of fetal life through the 12th month of infancy. Data indicate that the critical/sensitive periods for syntax run through the 4th year of life, and for semantics through the 15th or 16th year of life. The data indicate that there is a time dependent series of functions in sequence that is based on responsive adaptations made by the CNS to pyschophysical and electrophysiological stimuli.
Ruben
R J
RJ
Department of Otolaryngology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York, USA. ruben@aecom.yu.edu
D000367:Age Factors; D001306:Auditory Pathways / Q000502:physiology; D002648:Child; D005333:Fetus / Q000502:physiology; D006309:Hearing / Q000502:physiology; D006801:Humans; D007231:Infant, Newborn; D007802:Language; D007804:Language Development