Linguistics
British linguist Adam Kendon (1988) argues that Warlpiri Sign Language is best understood as a manual representation of the spoken Warlpiri language (a manually coded language), rather than as a separate language; individual signs represent morphemes from spoken Warlpiri, which are expressed in the same word order as the oral language. However, "markers of case relations, tense, and cliticised pronouns are not signed," and some spatial grammatical features are present which do not exist in spoken Warlpiri.
Read more about this topic: Warlpiri Sign Language