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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Sensory Based Motor Disorder(also: SBMD)
A subtype of Sensory Processing Disorder in which the brain has difficulty using sensory information to plan and execute motor actions. SBMD encompasses two sub-types: postural disorder, which affects balance and core stability, and dyspraxia, which impacts motor planning and…
Sensory Processing Disorder(also: SPD, Sensory Integration Disorder, Sensory Integration Dysfunction)
A condition in which the brain has difficulty receiving, organizing, and responding to sensory information from the environment and the body. People with Sensory Processing Disorder may be oversensitive or undersensitive to sensory input — including touch, sound, light,…
Social Attention(also: Social Orienting)
The set of behaviours, motivations, and perceptual processes involved in directing and coordinating attention toward other people during social interaction. Social attention includes orienting toward others, maintaining awareness of their position and gaze direction, and using…
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. Developmental researchers categorise it along two axes: social level (Parten's six stages…
Specific Language Impairment(also: 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 environmental deprivation. Children with specific language impairment may have…
Speech Delay(also: Language Delay, Delayed Speech)
A condition in which a child does not develop speech and language skills at the expected rate for their age. Speech delay can affect the production of sounds (articulation), the ability to form words and sentences (expressive language), or the understanding of language…

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