Signs in sign languages have been mainly analyzed as composed of three formational elements: hand configuration, location, and movement. Researchers compare and contrast lexical differences and similarities among different signs and languages based on these formal elements. Such measurement requires extensive manual annotation of each feature…

Revolutions can happen in different ways. About six years ago, a very particular type of revolution began in a cluster of rooms on the main campus of Gallaudet University. There, a handful of individuals began a "quiet revolution" guided by an overarching passionate mission to conduct groundbreaking science that would have widespread…

By using depiction, language users are able to provide information about what an entity or event is like, what it looks like, or even what it acts like. When giving a presentation, signers may use and reuse instances of depiction and may switch from one instance to another. In an examination of 160 minutes of video of American Sign Language (ASL)…

This article presents an analysis of the relationship between sign structure and iconicity in American Sign Language. Historically, linguists have been pressured to downplay the role of form-meaning relationships (iconicity) in signed languages. However, recent inquiries into the role of traditional phonological parameters of signs (handshape,…

This article presents an experimental investigation of kinematics of verb sign production in American Sign Language (ASL) using motion capture data. The results confirm that event structure differences in the meaning of the verbs are reflected in the kinematic formation: for example, in the telic verbs (throw, hit), the end-point of the event is…

Children with autism spectrum disorder present with a variety of social communication deficits such as atypicalities in social gaze and verbal and non-verbal communication delays as well as perceptuo-motor deficits like motor incoordination and dyspraxia. In this study, we had the unique opportunity to study praxis performance in deaf children…

Previous research has provided evidence that mental imagery and embodied action can facilitate lexical learning in a novel language. However, it is unclear "how" these factors interact--as well as "why" they play a role--in lexical learning. Through a set of four experiments, this research demonstrated that neither mental…

There is no denying that human hands throughout art history have been alluring subjects for artists. Think of Michelangelo's portrayal of God and Adam's graceful hands on the Sistine Chapel ceiling, reaching out longingly to each other. In German Expressionist artist Egon Schiele's portraits, the long, bony fingers of his models' hands seem to…

This dissertation examines depiction in American Sign Language (ASL) presentations. The impetus for this study came from my work as an instructor in an interpreter education program. The majority of ASL/English interpreters are second language learners of ASL, and many of them find some features of ASL challenging to learn. These features are…

Two experiments investigated categorical perception (CP) effects for affective facial expressions and linguistic facial expressions from American Sign Language (ASL) for Deaf native signers and hearing non-signers. Facial expressions were presented in isolation (Experiment 1) or in an ASL verb context (Experiment 2). Participants performed ABX…

In American Sign Language (ASL), native signers use eye gaze to mark agreement (Thompson, Emmorey and Kluender, 2006). Such agreement is unique (it is articulated with the eyes) and complex (it occurs with only two out of three verb types, and marks verbal arguments according to a noun phrase accessibility hierarchy). In a language production…

This longitudinal case study examined the language and literacy acquisition of a Deaf child as mediated by her signing Deaf parents during her first three years of life. Results indicate that the parents' interactions with their child were guided by linguistic and cultural knowledge that produced an intuitive use of child-directed signing (CDSi)…

Grounded blends may be literal or metaphorical, the latter allowing for an even richer variety of blend characteristics. This contribution of metaphor is achieved largely through the utilization of body partitioning. Body partitioning may result in: (1) the appearance of a single, coherent source-domain scene iconically represented; (2) a single…