Glossary

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Causal Listening

A mode of listening, identified by composer and theorist Pierre Schaeffer, in which the listener focuses on identifying the source or cause of a sound — for example, hearing crumpling paper and recognising it as something being discarded, or hearing a camera shutter and…

Central Vision(also: Foveal Vision)

Central vision is the area of sharpest sight in the visual field, corresponding to the fovea at the centre of the retina. It is responsible for detailed tasks such as reading, recognizing faces, and distinguishing fine detail and colour. Loss of central vision, commonly caused…

Change Blindness(also: Changeblindness, Inattentional Blindness)

Change blindness is a perceptual phenomenon in which observers fail to notice changes to a visual scene when the change coincides with a visual disruption such as an eye movement, blink, or brief occlusion. In accessibility contexts, change blindness is particularly relevant for…

Color Perception(also: Color Vision, Chromatic Vision)

Color perception is the ability to detect, distinguish, and identify colors. Impairments in color perception range from complete color blindness (achromatopsia) to partial deficiencies in distinguishing specific color ranges, such as red-green or blue-yellow color vision…

Cross-Modal Perception(also: Multisensory perception, Cross-modal integration)

The neural and perceptual integration of information arriving through two or more sensory channels — such as vision, hearing, touch, and proprioception — into a coherent experience of the world. Cross-modal perception explains phenomena such as the McGurk effect,…

Cross-Sensory Translation(also: Sensory Substitution, Sensory Translation, Cross-Modal Translation)

The process of converting information from one sensory modality to another — for example, representing visual information through touch, sound, smell, or taste. In exhibition accessibility, cross-sensory translation is used to make visual artworks accessible to blind and low…

Cross-modal(also: Cross-modal Correspondence, Cross-modal Perception)

The phenomenon whereby information or stimulation in one sensory modality (such as vision) systematically influences or corresponds with perception in another modality (such as hearing or touch). In accessibility contexts, cross-modal correspondences are exploited in sensory…

Cross-modal Congruency

The temporal, spatial, and semantic alignment of sensory cues during an interaction — for example, a visual event and its accompanying sound occurring at the same moment and in the same location, with matching emotional tone. Congruency differs from correspondence:…

Cross-modal Plasticity(also: Cross-modal Reorganisation, Cross-modal Cortical Recruitment, Sensory Substitution)

A neurological phenomenon in which brain regions typically dedicated to processing one sensory modality are repurposed to process information from another sense, often as a result of sensory deprivation. In deaf individuals, auditory cortical areas can reorganise to support…

Cutaneous Perception(also: Cutaneous Sense, Cutaneous Feedback, Tactile Perception)

The sensory experience derived from receptors beneath the surface of the skin that respond to temperature, pain, and pressure. In the context of assistive technology, cutaneous perception enables users to detect surface textures, raised patterns, and embossed details through…

Cybersickness(also: VR Sickness, Simulator Sickness, Virtual Reality Motion Sickness)

A form of motion sickness experienced during virtual reality use, characterized by symptoms including nausea, disorientation, dizziness, eye strain, and general discomfort. Cybersickness occurs due to sensory conflicts between what the visual system perceives (movement in the…

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