Ann Johnson became paralyzed after a brainstem stroke in 2005, at age 30. As the third participant in a clinical trial led by researchers at UC Berkeley and UC San Francisco, she heard her voice again in 2022, the first time in 18 years. Credit: Noah Berger, 2023/University of California–Berkeley
Ann Johnson became paralyzed after a brainstem stroke at age 30. As a participant in a clinical…