Co-speech gesture in monolinguals has been linked to several cognitive processes: prompting memory stores, conveying spatial concepts, searching for lexical equivalents, and supporting rhythm and cohesion. The production of co-speech gesture also occurs in spoken language bilinguals. Studies have demonstrated that bilinguals fluent in American…

Classical quantifiers (like "all," "some," and "none") express relationships between two sets, allowing us to make generalizations (like "no elephants fly"). Devices like these appear to be universal in human languages. Is the ubiquity of quantification due to a universal property of the human mind or is it…

In three structural priming experiments, we investigated whether deaf and hearing writers differ in the processes and representations underlying written language production. Experiment 1 showed that deaf writers of Mandarin Chinese exhibited comparable extents of structural priming and comparable lexical boosts, suggesting that syntactic encoding…

Recent research shows that deaf signers show increased behavioral and neural sensitivity to certain types of movement, such as biological motion, human actions, and signing avatars. However, other work suggests that in deaf signers exposed to signed language before age five, the mirror mechanism has minimal involvement during the perception of…

Embodied cognition posits that physical interactions with the environment play a crucial role in learning, including complex, abstract concepts in STEM disciplines. This is relevant for deaf and hard-of-hearing (DHH) learners who often utilize sign language, which is a naturally embodied, visuospatial mode of communication. My dissertation…

Experience with a visual-spatial language may influence certain cognitive processes (Keehner and Gathercole 2007). Spatial ability is an important cognitive skill (Linn and Petersen 1985). Some research has found that deaf signers outperform hearing nonsigners on certain spatial tasks (e.g., Emmorey, Kosslyn, and Bellugi 1993) and that hearing…