 Adults may also use scanning with a partner when they are not using their more high-tech alternative communication device.Partner-assisted scanning can also be the main means of communication for adults in late stages of diseases such as amyotrophic lateral sclerosis (ALS), multiple sclerosis (MS) or those in intensive care.In partner-assisted scanning, the communication partner presents messages or letter choices in a sequential fashion to the individual who wishes to communicate something, and the individual then makes their selection.