Non-Verbal Communication Tools: Exploring AAC Devices and Sign Language

 Communication is a human right, yet for many non-verbal or minimally verbal people—especially in the autistic community—spoken language is not always viable. Thankfully, there are a host of non-verbal communication aids to bridge the divide and allow individuals to communicate, connect, and participate fully in their communities.


In this post, we talk about two robust forms of non-verbal communication: AAC devices and sign language.



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Understanding Non-Verbal Communication


Non-verbal communication refers to any method of communication that does not involve speech. For some people with autism, especially those who are non-speaking or have limited verbal skills, these methods can be essential. Non-verbal communication devices support expressive language, comprehension, and social interaction.



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What Are AAC Devices?


AAC (Augmentative and Alternative Communication) is the name given to devices and methods that enhance or take the place of spoken communication. AAC can be separated into two categories:


1. Unaided AAC


These are methods that do not require external devices, such as:


Gestures


Facial expressions


Body language


Sign language (covered in the next section)



2. Aided AAC


These are tools or materials that facilitate communication and vary from low-tech to high-tech.


Low-Tech AAC Examples:


Picture Exchange Communication System (PECS): Uses pictures to ask for something or to convey ideas.


Communication boards or books: Contain images, symbols, or words that the user points to.



High-Tech AAC Examples:


Speech-generating devices (SGDs): Electronic devices that convert text or symbols to spoken words.


Tablet-based apps: Apps like Proloquo2Go, TouchChat, and LAMP Words for Life offer customizable communication through symbols, text, and voice output.



Why AAC is Important


AAC empowers individuals by giving them a voice—both literally and figuratively. It helps in the growth of language, reduces frustration, and promotes independence.


Myth Buster:

AAC use doesn't prevent someone from developing spoken language. In fact, it often assists speech development if it's used consistently.



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The Power of Sign Language


Sign language is a visual-manual language that depends on hand shapes, movement, facial expressions, and body position to convey meaning. It's a rich, expressive language with its own grammar and syntax.


Benefits for Autistic Individuals:


 Offers a natural, expressive way to communicate


 Reduces frustration from speech difficulty


Encourages social interaction and bonding


Can be learned and used by both speaking and non-speaking individuals



Common Types of Sign Language:


American Sign Language (ASL): Widely used in the U.S. and Canada in certain regions


British Sign Language (BSL): Used in the United Kingdom


Indian Sign Language (ISL): Being identified and used more in India


Most nations or regions possess their own sign language system



Combining Sign Language with AAC


Others use a combination of AAC and sign language, depending on setting, communication partner, or personal preference. This versatility ensures that communication is always available across environments.


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How to Support Non-Verbal Communication


If you are a parent, caregiver, educator, or supporter, the following are some ways in which you can support non-verbal communication:


Learn about AAC options and consult with a speech-language pathologist (SLP)


Introduce sign language early and use it consistently


Honor all forms of communication—pointing, gestures, signs, typing, pictures, etc.


Be patient and listen—communication may be slow and that's okay


Celebrate each step forward, no matter how small



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Final Thoughts


Communication is more than words spoken. For many autistic individuals, non-verbal supports like AAC and sign language have been an empowering means to self-expression, autonomy, and communication. In embracing these tools, we create a more inclusive world—one where all voices, spoken or not, are heard and valued.



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Have experience with AAC or sign language? We'd love to hear your story in the comments below. Let's keep the conversation going—and celebrate all the ways we communicate.


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