Village sign language
A village sign language, or village sign, is a local indigenous sign language which arises in an area with a high incidence of congenital deafness, and which is not restricted to the deaf population. Meir et al. define a village sign language as one which "arise[s] in an existing, relatively insular community into which a number of deaf children are born." Such languages are typically known throughout the community by a large portion of the hearing population. They generally include signs derived from gestures used by the hearing population, so that neighboring village sign languages may be lexically similar without being actually related, due to cultural similarities in gesture which preceded the sign languages. Most are endangered due to the spread of formal education for the deaf, which use or generate Deaf-community sign languages, such as a national or foreign sign language.
Characteristics of village sign 
The nature of the village sign language depends on the nature of deafness in the community. Where deafness is genetically recessive, deaf children may not have immediate family who are deaf, but more distant deaf relatives. Many families have deaf members, and so large numbers of hearing people sign (though not always well). In Desa Kolok on Bali, for example, two thirds of villagers sign even though only 2% are deaf; in Adamorobe, Ghana, the number of hearing signers is ten times the number of deaf people. This means there is generally good communication between the deaf and hearing people outside of their families, and thus a high degree of intermarriage between the deaf and hearing. In extreme cases, such as on Providencia Island of Colombia, nearly all conversations deaf people have are with the hearing, and there is little direct communication between deaf people themselves, and so little opportunity for the language to develop. Perhaps as a result, Providencia Sign is rather simplistic, the hearing speak to the deaf as if they were stupid, and the deaf are not well integrated into the community. In most recorded situations, it appears that recessive deafness is at work.
Where the deafness is genetically dominant, on the other hand, deafness is largely restricted to particular families, such as the Mardin family of Turkey. Deaf people tend to have deaf children, and so pass the language on directly; with plenty of direct contact between deaf signers, the languages tend to be well developed. With fewer hearing people with deaf relatives, there are also generally fewer hearing people who sign, and less intermarriage; families tend to have their own vocabulary (and perhaps language), as on Amami Oshima in Japan. There are exceptions, however: In Ban Khor in Thailand the deafness is dominant, and restricted to one extended family, but the houses of different families are intermixed within the village, so nearly all hearing people have deaf neighbors, and signing is widespread among all-hearing families.
Village sign contrasts with Deaf-community sign languages, which arise where deaf people come together to form their own communities. These include school sign, such as Nicaraguan Sign Language, Penang Sign Language, and the various Tanzanian and Sri Lankan sign languages, which develop in the student bodies of deaf schools which do not use sign as a language of instruction, as well as community languages such as Bamako Sign Language (Mali), Hausa Sign Language (Nigeria), Saigon, Haiphong, and Hanoi Sign Language (Vietnam), Bangkok and Chiangmai Sign Language (Thailand), which arise where generally uneducated deaf people congregate in urban centers for employment. Deaf-community sign languages are not generally known by the hearing population.
There appear to be grammatical differences between village and Deaf-community languages, which may parallel the emergence and development of grammar during creolization. No known village sign language uses sign space for abstract metaphorical or grammatical functions, for example, restricting it to concrete reference, such as pointing to places or where the sun is in the sky at a particular time. It is thought that such differences may be at least partially due to the sociolinguistic setting of the languages. In the case of village sign, speakers are culturally homogenous. They share a common social context, history, and experiences, and know each other personally. This may allow them to communicate without being as explicit as required for a larger, less intimate society. As a consequence, grammatical and other linguistic structures may develop relatively slowly.
Because village sign languages are used by large numbers of hearing people, people who also use spoken languages, the structures of village sign languages are more easily influenced by spoken languages. For example, Adamorobe Sign Language of Ghana has serial verbs, a type of linguistic construction found in no other sign language, but found in the language spoken by the hearing people of the community, the Twi language.
Deaf sign languages contrast with speech-taboo languages such as the various Aboriginal Australian sign languages, which are developed by the hearing community and only used secondarily by the deaf, and are not independent languages.
Village sign languages have historically appeared and disappeared as communities have shifted, and many are unknown or undescribed. Attested examples include:
- Adamorobe Sign Language, Nanabin Sign Language (Ghana)
- Bura Sign Language (Nigeria)
- Tebul Sign Language (Mali)
- Ghardaia Sign Language (Algeria → Israel)
- Al-Sayyid Bedouin Sign Language (Israel)
- Mardin Sign Language (Turkey)
- Old Kent Sign Language (England)
- Alipur Sign Language, Naga Sign Language (India)
- Jumla Sign Language, Jhankot Sign Language, Ghandruk Sign Language (Nepal)
- Ban Khor Sign Language, Huay Hai Sign Language, Na Sai Sign Language (Thailand, perhaps a single language)
- Amami Island Sign Language (Japan; perhaps several languages)
- Kata Kolok (Bali, Indonesia)
- Rennellese Sign Language (Solomon Islands)
- Inuit Sign Language (Canada)
- Maritime Sign Language (Canada, part of the BANZSL family)
- Martha's Vineyard Sign Language (US)
- Henniker Sign Language, Sandy River Valley Sign Language (US)
- Mayan Sign Language (Mexico, Guatemala)
- possibly Bribri Sign Language, Brunca Sign Language (Costa Rica)
- Providence Island Sign Language (Colombia)
- Ka'apor Sign Language (Brazil)
- Meir, Sandler, Padden, & Aronoff, (2010). "Emerging sign languages." In Marschark & Spencer, eds., Oxford Handbook of Deaf Studies, Language, and Education, vol. 2.
- Connie De Vos and Ulrike Zeshan. 2012. Introduction: Demographic, sociocultural, and linguistic variation across rural signing communities. Sign Languages in Village Communities: Subtitle: Anthropological and Linguistic Insights, edited by Connie De Vos and Ulrike Zeshan, pp. 2-24. (Series Title: Sign Language Typology 4). Berlin: De Gruyter Mouton.
- EuroBABELproject: VillageSign at the University of Central Lancashire
See also 
Zeshan, Ulrike and Connie de Vos, eds. 2012. Sign Languages in Village Communities: Subtitle: Anthropological and Linguistic Insights (Series Title: Sign Language Typology 4). Berlin: De Gruyter Mouton.