Edward F. Chang, MD1; Gopala K. Anumanchipalli, PhD1 Author Affiliations Article Information JAMA. Published online December 27, 2019. doi:https://doi.org/10.1001/jama.2019.19813 poken communication is a basic human function. As such, loss of the ability to speak can be devastating for affected individuals. Stroke or neurodegenerative conditions, such as amyotrophic lateral sclerosis, can result in paralysis or dysfunction...