The number of hearing impaired infants and toddlers who are successfully aided by technological devices, such as hearing aids and cochlear implants, continues to grow, but there are still unknowns about these children's speaking abilities, according to a Purdue University expert.

More than 4,000 children in China who have received cochlear implants and other devices will soon benefit from a speech perception test offered in Mandarin.

A broad study of adults ages 65 and older has found that half of them have one or more conditions that can affect their ability to participate in activities of daily living, such as bathing and dressing on their own.

Experience hearing a person's voice allows us to more easily hear what they are saying. Now research by UC Riverside psychology Professor Lawrence D. Rosenblum and graduate students Rachel M. Miller and Kauyumari Sanchez has shown that experience seeing a person's face also makes it easier to hear them.