Deaf Kids' word learning secrets revealed in Eye-Tracking study

This study looked at how deaf children ages 18 to 60 months learn new words in American Sign Language (ASL). Researchers used eye-tracking and behavior tests to see if kids assume each object has only one sign (mutual exclusivity) or if bilingual deaf children expect two words—one in sign and one in speech. The goal was to understand learning strategies, not to test a treatment.