“What came first?” He said. “The changes in speech, or the changes in the brain?”
Ray Jackendoff, a linguist at Tufts who was not involved in the study, said it was easy for the group to say some sounds to a diet. "Different cultures cannot make certain sounds more frequent than others" they do not say much about the deep history of the language. ”
Other cultural and social factors, such as taking sounds from neighbors, can contribute to language changes, authors of the study said. For example, when rescue-gathering groups and groups of people were mixed, they made their sounds .
Other linguists say the study lies on untested assumptions, such as how large these small changes might affect sounds, the types of errors they could produce, the age of the t by teeth that collect hunters, and the view that proxy agriculture is useful for diet. The role of cognitive factors, including neurological control of speech organs, is not addressed.
The authors answer that they do not minimize the roles that culture, society or cognition play in language development. But they say that physical differences between people in the study of human development require as much attention as they do in research on animal communication systems.
Some linguists are concerned that there is no subsequent study of physics or the biological differences of the multidisciplinary religious language which have contributed significantly to past linguistics, particularly if judicial research is publicly demonstrated. value of the languages of the different groups. individuals who find themselves in land-based societies, rather than considering the benefits people may have in hunter-collector societies, ”said Adam Albright, linguist at MIT