The Japanese Journal of Clinical Dialysis Vol.20 No.10(1-1)

Theme Communication Skill in the Dialysis Medical Treatment
Title Human evolution and communicative development
Publish Date 2004/09
Author Akira Ono Tokyo Metropolitan University, Faculty of Social Science and Humanities
[ Summary ] Human language is similar to types of communication used by various animals. It is presumed that grammar originated from rules, which produce a chain of operations. The origin of early hominids dates back more than ca.600 Ma, and up to the emergence of modern Homo sapiens sapiens, brain capacity has enlarged three times over. The main dispute has been over the correlation between brain, language, and tool-use. Here in we discuss two different approaches, one is lithic tool-makinganalysis, and the other is experimental analysis of lithic tool making in the present by captive bonobo (Pan paniscus) populations.
The language area within the cerebral hemisphere had a role in the hominization processes, and behavioral evolution, influenced by language use, was also concomitantly attained. These phenomena were explicitly supported byarchaeological artifacts from ca. 0.4 Ma sites in relation to hunting activities. One of the most outstanding hypotheses emphasizes that communicative ability at present levels, emerged in the Upper Palaeolithic. Integration and accessibility between mental modules or cognitive domains dramatically increased in this period. Face to face communication will play a much more critical role, particularly in the near future.
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