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Reasons to Use Visual Aids. 1  Improves audience understanding and memory. 2  Serves as notes. 3  Provides clearer organization. 4  Facilitates more eye contact and motion by the speaker. 5  Contributes to speaker credibility.
People with severe speech or language problems rely on AAC to supplement existing speech or replace speech that is not functional. Special augmentative aids, such as picture and symbol communication boards and electronic devices, are available to help people express themselves. This may increase social interaction, school performance, and feelings of self-worth. AAC users should not stop using speech if they are able to do so.