The primary goal of this dissertation is to investigate the relationship between Universal Grammar and the properties that Universal Grammar constrains, by investigating how language is created/acquired. The framework proposed in this dissertation provides us with tools for predicting what will and will not appear in linguistic systems of…

This article first introduces some theoretical considerations concerning the emergence and evolution of sign languages from the semiogenetic perspective. It then presents results from a linguistic study of the phenomenon of lexical stabilization in three emerging sign languages used by Brazilian deaf adults who live in a hearing environment…