Origins of the language: Correlation between brain evolution and language development

Abstract

The question about when and how language emerged in human evolution has been a major and intriguing question since at least the classical Egyptian times. It is reported that the Pharaoh Psamtik took two children to be raised by deaf-mutes, in order to find out what was the first and natural language.When these childrenwere later observed, one of them said something that sounded like bekos, the Phrygian word for bread. From this, Psamtik concluded that Phrygian was the first and original language. During the following centuries, the origin of language continued as a most intriguing and polemic question. Different approaches and interpretations were proposed throughout the history. At a certain point, the debate became so complex and hot, that in 1866 the Linguistic Society of Paris banned discussion of the origin of language, arguing that it to be an unanswerable problem. Contemporary research on linguistics, archeology, comparative psychology and genetics has significantly advanced in understanding the origins of human language (e.g., Bickerton, 1990; Corballis, 2002, 2006; Enard et al. 2002; Mallory, 1989; Nowak and Krakauer, 1999; Ruhlen, 1994; Swadesh, 1967; Tallerman, 2005). Different disciplines have contributed from their own perspective to make human communication system more comprehensible. Thepurposeof thispaper isnot to furtherreviewanddiscuss thehistoricalorigins of language, but to relate what is known (or supposed) on the origins of language, withcontemporaryneurologyandneuropsychologydata,particularly,with thearea of aphasia. Aphasia knowledge can potentially alsomake a significant contribution to the understanding about the origin and evolution of human language.