13 Dec 2005
Bob Ladd and Dan Dediu
A correlation between genes and lexical tone?
A correlation between two new mutations of brain growth and development-related genes and tonality was detected. It cannot be explained by geographic proximity, nor by a simple founder effect and we conjecture that it might represent the first case of causal link between variation in genes and linguistic features. This offers new perspectives on language evolution and the human linguistic capacity.
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