A international research team composed of linguistics experts compares the most common modern sign language with a computer model，and track its origin。This research has been published recently in Science magazine。

Language is a decisive factor in establishing a person's subjectivity，But it is not static。The changes in time and space of language reflect the dynamic changes of human experience，The traces of history are deeply imprinted on the development of language。Researchers said，There are already some tracking research Bet365 app download on written language history，But the study of sign language origin is relatively scarce，People know very little about the origin of sign language and the interaction between them。Sign language，Like spoken and written words，It has uniqueness for different groups or cultures。Many sign language and written language are corresponding，Such as French、Spanish and Japanese sign language。Current，There are more than 300 types of sign language used by listening disabled people around the world。These sign language is important to the intellectual development of hearing impaired people，helps them better integrate into society。

The emergence and communication of sign language reflects the history of related regions，But，The preservation Bet365 lotto review problem of historical records and the limitations of language and literature limits the time of time about sign language。The research team analyzed the spectrum of 19 types of hand language around the world through the calculation system development analysis method (Computational Phylogenetic Methods)，They mainly use vocabulary data from contemporary language coded to infer their correlation，And recommended these methods to study changes in the form of sign language。

This research team tries to form a word in the language by analyzing the gesture，To a greater extent, understand the origin of sign language。Researchers classify words in accordance with the attributes of the core vocabulary，such as，Follow the gesture of "tree" Bet365 app download as a overall concept rather than "oak tree"。then，Researchers enter the database of the core vocabulary，Calculate analysis of all vocabulary。

As part of the analysis process，Researchers used computer modeling to analyze the physical attributes of words or concepts in sign language expression。such as，Is the gesture formed with one hand or two hands、The shape of the hand、The position of the hand and the movement of the hand and arm。Researchers also programming the opponent's gesture model，Research common features or similarity of vocabulary expression。From this，Researchers have established a sign language "family genealogy"，and divide it into two categories of Europe and Asia。This research also explores the evolution bet365 live casino games of sign language based on the known historical events (changes or supplements)。such as，Researchers can determine，When the leaders of France in the 18th century France promoted the expansion of the education system of the country's hearing impaired person，French sign language has developed mature，and have a large impact on other sign language。This model also helps the research team discovered some contacts that have not been recognized before，For example, some contacts between British sign language and other Western English sign language。

(Wang Junmei/Compilation)