Psycholinguistics

The scientific study of the cognitive and neural processes that underlie the production, comprehension, and acquisition of language. Psycholinguistic research measures phenomena such as reading and signing rate, comprehension under time pressure, lexical access, and the role of pauses and prosody in understanding. For accessibility practice, psycholinguistic findings inform the design of assistive technologies such as text-to-speech, text simplification, captioning, sign-language animation, and screen readers — for example, studies of pause placement in speech and signing are used to decide how automated systems should chunk content so that users can comprehend it. Psycholinguistic evidence is a core input to technology that serves people with low literacy, cognitive disabilities, or language-processing differences.