Language, cognition, literacy and augmentative communication
Language assessment considers form, content and use across relevant languages and contexts. Vocabulary, grammar, narrative, inference and pragmatic communication can contribute differently to a person’s difficulties. A normal naming task does not prove effective conversation or work communication. A low score on a test not suited to the person’s language experience does not independently establish a disorder. Use history, samples, functional observation and appropriate measures together.
Children’s language and literacy develop through interacting opportunities, abilities and environments. Hearing and access to communication should be considered. Phonological awareness, vocabulary, narrative and comprehension can inform educational support, while a particular error should not be judged without language and dialect context. Dynamic assessment examines response to teaching and can add information about learning, but it does not provide a perfect difference-versus-disorder decision from one session.
Acquired language disorders differ from cognitive-communication disorders. Aphasia may affect expression, understanding, reading and writing, while attention, memory, planning or social cognition can impair communication after brain injury even when basic sentence tasks are normal. Assess meaningful discourse and real activities, and use supported communication without assuming that language impairment equals inability to make decisions.
Augmentative and alternative communication is selected through needs and feature matching, not a requirement to prove failure of every speech approach first. Consider motor and sensory access, language, communication functions, partners, environments, cost and support. Systems may be aided or unaided and low or high technology. A device alone does not create communication access; partner modeling, relevant vocabulary, time to respond and opportunities to initiate are important.
Intervention should support participation and generalization. Goals can include expressing needs, participating in learning, maintaining relationships or handling work communication. Build practice across partners and routines and review actual outcomes. For progressive disease, proactive planning can protect future access without promising that one device remains suitable indefinitely. This conceptual preparation does not replace direct language sampling, multilingual expertise, neuropsychological assessment where needed or practical AAC trial and fitting.