Summary in Chinese missing?
(3) Miscellaneous Evidence
There are some further tantalizing indications for a direct and profound dependence of language capacity on genetic constitution. Unfortunately, the evidence is still too scanty to base any elaborate theory upon it. Let us merely refer to these matters for the sake of completion and in the hope that further research will clarify these points. First, there is a report from
Second, there is an inherited error of metabolism producing a disease called histidinemia which particularly affects the development of speech. The few cases that have been described in the medical literature (Auerbach et al., 1962;
(4) The Darlington-Brosnahan Hypothesis
Ⅳ. LIMITATIONS ON THE RECONSTRUCTION AND “DATING” OF THE HISTORY OF LANGUAGE