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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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Guided Participation
Guided participation is a concept from Barbara Rogoff's developmental psychology describing how children learn through engaged collaboration with more experienced partners in everyday shared activities - not through formal instruction, but through side-by-side participation…
Imitation(also: Embodied Imitation)
The act of observing and reproducing another person's actions, gestures, or vocalisations. Imitation is a foundational social and developmental skill that supports language acquisition, motor learning, and the establishment of shared experience between a child and a caregiver or…
Laterality(also: Left-Right Discrimination, Lateral Awareness)
Laterality is the ability to distinguish between left and right sides of the body and to apply this understanding to the surrounding environment for spatial orientation and navigation. Laterality is a fundamental spatial cognition skill that underpins many daily activities, from…
Object Permanence
The cognitive understanding that objects continue to exist even when they cannot be directly perceived through sight, sound, or touch. This developmental milestone, typically achieved in infancy for sighted children, can develop differently in blind children who lack visual…
Transitional Object(also: Comfort Object)
A concept from developmental psychology, introduced by D. W. Winnicott, referring to a soft, often tactile object - a blanket, stuffed toy, or similar - that a child uses to support self-soothing and the transition between dependence on a caregiver and independent experience.…

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