Dermatoglyphic variation among South American tribal populations and its association with marker gene, linguistic, and geographic distances.
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The suffixes of the nominal declension in the Old Canary and Etruscan languages are very similar to the corresponding elements of the Sumerian and Ural-Altaic tongues. Also many words of funeral and generally cultic provenance are derived from common roots in these languages. So one may assume that the Indoeuropean tongues of (West) Europe overlaid a common substratum of Ural-Altaic type which was alive still in the time of Megalithicum.
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This article presents a stage process framework for describing the normal acquisition of language based on developmental research. The synergistic relationship of its components as each contributes to the increasingly complex behavior we call communication is stressed.
3 studies were based on subgroups selected from larger pools of either normal children or children with delays in the expression and/or comprehension of language but normal nonverbal abilities. In Study 1, younger (28-50 months) and older (51-68 months) normal (N = 27) and language-delayed (N = 33) boys were observed interacting with their mothers in free play and structured task situations. Although language-delayed children initiated fewer interactions, their responsiveness to maternal interactions, questions, and commands did not differ from that of normal children. Mothers questioned language-delayed children less frequently during tasks but did not differ from mothers of normal children on other measures of interaction, responsiveness, control, or reward strategies. In Study 2, the complexity of maternal speech directed to normal (N = 11) and expressively delayed (N = 11) boys who were matched on the basis of comprehensive skills did not differ. Maternal speech to boys with delays in both language expression and comprehension (N = 11) was significantly less complex. In Study 3, the discrepancy between the speech complexity of mothers and that of their language-delayed children (N = 47) was greatest in younger children with greater expression and comprehension delays, who initiated fewer interactions and proved less responsive to maternal interactions and questions.
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