Virtual Reality (VR) is a computer-created sensory experience that allows a participant to believe and barely distinguish a "virtual" experience from a real one using computer graphics, sounds, and images to reproduce electronic versions of real-life situations. This digest describes how VR works and discusses applications of VR in…

This digest uses a question-and-answer format to summarize issues in the use of cochlear implants (an array of electrodes surgically implanted into the cochlea) with deaf or hard-of-hearing children. It describes the implants and summarizes the research on the effectiveness of the devices, which indicates that the devices are most effective in…