Across a diverse range of languages, children proceed through similar stages in their production of causal language: their initial verbs lack internal causal structure, followed by a period during which they produce causative overgeneralizations, indicating knowledge of a productive causative rule. We asked in this study whether a child not…

Handshape works differently in nouns versus a class of verbs in American Sign Language (ASL) and thus can serve as a cue to distinguish between these two word classes. Handshapes representing characteristics of the object itself ("object" handshapes) and handshapes representing how the object is handled ("handling" handshapes)…

Spoken languages are characterized by flexible, multivariate prosodic systems. As a natural language, American Sign Language (ASL), and other sign languages (SLs), are also expected to be characterized in the same way. Artificially created signing systems for classroom use, such as signed English, serve as a contrast to natural sign languages. The…

A notable difference between signed and spoken languages is the use of nonmanual linguistic signals that co-occur with the production of signs. These nonmanual signals involve primarily the face and upper torso and are an important feature of American Sign Language (ASL). They include grammatical markers that indicate syntactic categories such as…

Examines from a creolist perspective the claim that American Sign Language (ASL) has creole origins. Applying criteria based on the work of various creole researchers, the article concludes that the evidence for creole origins of ASL does not meet any usual definition of a creole. The article discusses lexical and morhosyntactic similarities…

This paper summarizes most of what Sign linguists know about the function of the eyes in American Sign Language discourse. Here, "eyes" is taken to cover both opening and closing of the eyes and looking in a particular direction, referred to as the signer's "gaze-direction." Evidence is presented demonstrating that a signer's gaze can be lexically…

Two pilot studies probed effectiveness of linguistically controlled, highly visual computer-assisted instruction (CAI) for English grammar instruction with hearing-impaired high school students (N=29 in the first study and N=71 in the second). Results from the first study suggested that state-of-the-art CAI designed specifically for use with this…