Rachel I. Mayberry is a professor of linguistics at the University of California San Diego where she directs the Multimodal Language Lab. Her main research uses American Sign Language and deafness as a means to model the nature and scope of the critical period for language. With colleagues and students, she also investigates the structure of sign languages cross-linguistically, the psycholinguistic processing of sign language in comparison to spoken language, reading development in the deaf population, and the role of gesture in language acquisition. Her work is currently funded by the National Institutes of Health. At UCSD, Professor Mayberry is also affiliated with the Center for Research on Language, the Center for Research and Teaching in Anthropogeny, the Interdisciplinary Doctoral Program in Cognitive Science, the Joint Doctoral Program in Language and Communicative Disorders, and the Program for Human Developmental Sciences.