Fundamental vocabulary groupings within Augmentative and Alternative Communication (AAC) are often visually represented using a framework likened to a lamp. This structure emphasizes a small set of frequently used words (verbs, prepositions, articles, etc.) as the base, supporting a wider vocabulary of less frequent, more content-specific terms. For example, the base might include words like “go,” “get,” “want,” and “on,” which can be combined with a broader vocabulary to create numerous phrases like “go home,” “get food,” “want toy,” and “on table.” This tiered approach allows individuals using AAC to generate a wide range of expressions with a limited number of selections.
This tiered vocabulary structure is crucial for efficient and effective communication. It prioritizes mastery of frequently used words, promoting fluency and reducing cognitive load for AAC users. By providing a solid foundation of core vocabulary, this approach facilitates the development of complex language skills and empowers individuals to express themselves in diverse situations. This “lamp” metaphor emerged as practitioners sought accessible ways to explain the importance of core vocabulary and its central role in AAC language development.
