In 2022, after three years at RIT’s National Technical Institute for the Deaf, Rain Bosworth established a new research lab there dubbed PLAY Lab (for Perception, Language and Attention in Youth) The vast majority of deaf kids in the United States — more than 90 percent — have parents who can hear. In grade school, Savannah Tellander, a graduate student at Stony Brook University in New York, sometimes felt as if teachers assumed she wasn’t as smart as other