Glossary

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Canonical Syllable(also: Canonical Babbling, Well-Formed Syllable)

A canonical syllable is a well-formed syllable in infant babbling that consists of a consonant-like closure (closant) produced by an oral cavity constriction followed by a vowel-like opening (vocant). Canonical syllables typically appear between 5 and 10 months of age in the…

Cognitive-Communication Needs(also: CCN, Cognitive-Communication Disorders)

Difficulties in communication that arise from underlying cognitive deficits in areas such as attention, memory, organization, problem-solving, and executive function, rather than from primary language impairments. Cognitive-communication needs commonly result from traumatic…

Communication Diary(also: Communication Notebook, Communication Book)

A low-tech, typically paper-based personal resource used by individuals with communication difficulties to support daily interactions. Communication diaries may contain written keywords, names, drawings, photographs, collaged objects, and other materials that serve as memory…

Communication Impairment(also: CI, Communication Disorder, Communication Disability)

Damage to brain functions responsible for language and memory that impairs the expression and understanding of spoken and written language. Communication impairments can result from neurological disease, stroke, or acquired brain injury, and include conditions such as aphasia…

Conversation Analysis(also: CA)

A qualitative research methodology that studies the sequential organization and interactional dynamics of naturally occurring talk and social interaction. Conversation analysis examines fine-grained details such as turn-taking, pauses, overlapping speech, gaze direction,…

Core Vocabulary(also: Core Words)

A small set of high-frequency words — typically pronouns, verbs, adjectives, and prepositions — that make up approximately 80% of what people say in everyday communication. Examples include words like "I," "want," "go," "more," "help," and "that." In AAC practice, core…

Cued Naming Therapy(also: Cued Naming, Cueing Hierarchy Therapy)

A structured aphasia therapy approach in which clinicians provide progressively stronger hints (cues) to help a person retrieve a target word. Cues may be phonological (providing the first sound or syllable), semantic (giving a related word or category), orthographic (showing…

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