The person can prompt the computer to speak the words by using a mouse, electronic switch, or touch screen. Special prompting techniques are available for a person with a visual impairment . Augmentative communication devices may consist of only a board with pictures. Many do not require a computer. The person can point to the pictures to convey his or her meaning or question.
Some laptop computers use a touch screen to perform the same function.
Either an occupational therapist or a speech therapist should be able to recommend any of these assistive devices. These professionals are well-trained in assistive devices in their specialty. The occupational or speech therapists are generally familiar with any new products. Hospitals specializing in rehabilitation will have these professionals available. Some private businesses also specialize in evaluating the need for these products.