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Last updated: 05 January 2025 Print

Augmentative and Alternative Communication (AAC)

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Augmentative and Alternative CommunicationVoice Output Communication Aids

Definition and Purpose

  • AAC provides alternative methods of communication for individuals with severe speech impairments or lack of speech.
  • Aims to enable independent communication and improve quality of life, regardless of temporary or long-term speech impairments.

Types of AAC

  1. Unaided Communication:
    • Relies on the individual's body, such as gestures, facial expressions, or sign language.
  2. Aided Communication:
    • Low-technology systems:
      • Includes photographs, pictograms, or communication boards.
    • High-technology systems:
      • Voice Output Communication Aids (VOCAs).
      • Devices with synthesized speech.

Factors Influencing AAC Success

  • Technical Support: Accessibility and reliability of AAC devices.
  • Device Features: Suitability of voice output, ease of use, and customizability.
  • Family Perceptions:
    • Families often worry AAC might hinder natural speech recovery.
    • Reassurance is crucial: AAC complements recovery and does not prevent speech use if it returns.
  • Staff Training and Knowledge: Skills of those supporting the AAC user are vital for effective implementation.
  • Individual Needs: Tailored AAC solutions based on the child’s cognitive, motor, and language comprehension capabilities.

AAC and Cerebral Palsy

  • Dyskinetic Cerebral Palsy:
    • Language comprehension is often intact despite severe motor limitations.
    • AAC introduction from an early age is crucial to ensure communication development.
  • Spastic Cerebral Palsy:
    • Language comprehension may be more significantly affected.
    • Requires careful assessment of receptive language to avoid underestimating abilities.

Key Considerations

  • Early introduction of AAC is essential, especially for children with profound communication challenges.
  • AAC is a right for individuals with disabilities and should be personalized to their needs.
  • Communication, whether through AAC or natural speech, is a cornerstone of quality of life and social integration.

Reassurance to Families

  • AAC does not inhibit natural speech recovery.
  • Children will naturally prefer speech if it becomes possible again.

AAC is a vital tool for supporting children with severe speech impairments, enabling them to communicate effectively, maintain social interactions, and enhance their overall quality of life. Early assessment, personalized intervention, and multidisciplinary support are critical for successful AAC implementation.