Katie Mudd - Speaker

Bart De Boer - Contributor

In Aoki & Feldman’s (1991) mathematical model of sign language persistence, persistence of a sign language is determined by the parent-to-child transmission of the language, assortative mating and recessive deafness. Gialluisi et al. (2013) set the parameters of Aoki & Feldman’s model based on a village sign language called Al-Sayyid Bedouin Sign Language (ABSL), and found that ABSL is predicted not to persist. In Aoki & Feldman’s model, ABSL is predicted to not persist because the model lacks features that are present in real sign languages. Village sign languages typically emerge in rural settings with a high incidence of hereditary deafness and are used by a large percentage of the population, deaf and hearing members, to communicate (de Vos & Pfau, 2015). Features of the social situation in which the language is used and transmitted vary on many levels, and it is unclear which ones allow for language emergence and persistence (Zeshan & de Vos, 2012). In an agent-based model, I analyze the role of hearing members, horizontal transmission and oblique transmission on sign language persistence in a structured population. These factors are found to be important in the emergence of real sign languages, but are found to make a minimal difference in previous models of sign language persistence (Aoki & Feldman, 1991).
22 Nov 201823 Nov 2018

Event (Conference)

TitleCognition, Behavior & Evolution Network
Abbrev. TitleCBEN
Web address (URL)
LocationUniversity of Antwerp

ID: 44695335