Glossary

Searchable terminology from accessibility, web standards, and related fields.

15 results found in Child Development.

Babbling (Canonical Babbling, Prelinguistic Vocalization)
The repetitive, syllable-like vocalizations produced by infants typically between 6 and 12 months of age as a precursor to spoken language. Babbling progresses through developmental stages from simple…
Canonical Syllable (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).…
Child Agency
Child agency is a child's capacity to initiate, shape, direct, and sustain activities - including play, conversation, and social interaction - rather than passively accepting adult or peer control. In…
Developmental Apraxia of Speech (Childhood Apraxia of Speech, CAS, DAS, Verbal Dyspraxia)
A motor speech disorder in which children have difficulty planning and coordinating the movements needed for speech, despite having no muscle weakness. Children with developmental apraxia of speech kn…
Infant-Computer Interaction (Baby-Computer Interaction)
The design and study of technology interfaces intended for use by infants, typically under 24 months of age. Infant-computer interaction presents unique challenges compared to other user populations b…
Language-Based Learning Impairment (LLI, Language Learning Impairment, Language Learning Disability)
A developmental condition in which children have difficulty acquiring language and later reading skills while other cognitive abilities appear relatively intact. Language-based learning impairments af…
Operant Conditioning (Instrumental Conditioning, Operant Learning)
A learning process in which behaviour is modified by its consequences — specifically, by reinforcement (rewards that increase the likelihood of the behaviour) or punishment (consequences that decrease…
Peer Culture
Peer culture is the body of shared understandings, values, social norms, communication practices, and play conventions that children co-construct among themselves through daily interaction - distinct …
Phonological Development (Speech Sound Development, Phonological Acquisition)
The process by which children learn to produce and organise the speech sounds of their language, progressing from early cooing and vowel-like sounds through canonical babbling (consonant-vowel syllabl…
Pre-speech Vocalizations (Pre-linguistic Vocalizations, Infant Vocalizations)
Sounds produced by infants before the development of recognizable speech, including cooing, babbling, and other vocal productions. Pre-speech vocalizations are important predictors of later articulati…
Prelinguistic Development (Pre-Speech Development, Prelinguistic Communication)
Prelinguistic development refers to the stages of vocal and communicative development that occur before an infant produces meaningful words, typically spanning from birth to approximately 12-18 months…
Rapid Auditory Processing (RAP, Auditory Temporal Processing)
The ability to perceive and process rapidly changing auditory signals that occur within tens of milliseconds, such as the rapid frequency and amplitude transitions that characterise speech sounds. Rap…
Social Play
Social play is intrinsically motivated, voluntary activity between two or more children that has no purpose beyond itself, yet is essential to emotional, cognitive, and social development. Development…
Specific Language Impairment (SLI, Developmental Language Disorder)
A neurodevelopmental condition characterised by significant difficulties in acquiring and using language that cannot be attributed to hearing loss, intellectual disability, neurological damage, or env…
Vocalization Analysis (Vocal Analysis, Infant Vocalization Analysis)
Vocalization analysis is the systematic study and measurement of vocal productions, including speech, pre-speech sounds, and non-speech vocalizations. In developmental and clinical contexts, vocalizat…