Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Perfect Pitch(also: Absolute Pitch, AP)
- The innate ability to identify or reproduce musical pitches without the aid of a reference note. People with perfect pitch can recognize and name any musical note by its pitch alone. For blind and low vision musicians, perfect pitch can be a significant advantage, serving as a…
- Phantom Sensation(also: Phantom Vibration, Vibrotactile Illusion)
- A phantom sensation is a perceptual illusion in which two vibrotactile actuators stimulating the skin simultaneously create the feeling of a single vibration at a point between them. By varying the amplitude and frequency of each actuator, the perceived location of the phantom…
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