It's not a full-blown language like american sign-language or langue des signes quebecoise but it's a language nonetheless, with words and syntax and phonology.

这种语言并不像美国手语,或加拿大魁北克手语那样成熟,尽管如此,这种语言依然拥有词,语法和语音

心理学导论课程节选 : 耶鲁公开课