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December 1967
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1,157 Reads
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5,266 Citations
Hospital Practice
The coming of language occurs at about the same age in every healthy child throughout the world, strongly supporting the concept that genetically determined processes of maturation, rather than environmental influences, underlie capacity for speech and verbal understanding. Dr. Lenneberg points out the implications of this concept for the therapeutic and educational approach to children with hearing or speech deficits.
... We compare the development and maturation of the auditory and visual systems in utero and outline the evidence in favor of a potent role for acoustic information in tuning a newborn's post-partum behavior. Evidence from emerging signed languages in deaf communities [11] and communities with a high proportion of congenitally deaf members [12] indicates that the necessary preconditions are in place for the development of vocal or gestural expressive language given the appropriate conditions for cultural transmission after birth [13,14]. In addressing the unsolved mystery of why the vocal mode has come to dominate human communication despite the availability of two viable channels, we contend that the combination of the environment in utero and the development of fetal sensory and cognitive capacities during the third trimester of gestation is such that it can support environmentally driven audiomotor learning to a significantly greater degree than visuo-gestural. ...
December 1967
Hospital Practice
