| BMLD | binaural masking level difference |
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| CMR | Comodulation Masking Release |
| MLD | Masking Level Difference |
| perceptual masking | The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness. (12 Dec 1998) |
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| masking | 1. The use of noise of any kind to interfere with the audibility of another sound. For any given intensity, low pitched tones have a greater masking effect than those of a high pitch. 2. In audiology, the use of a noise applied to one ear while testing the hearing acuity of the other ear. 3. The hiding of smaller rhythms in the brain wave record by larger and slower ones whose wave form they distort. 4. In dentistry, an opaque covering used to camouflage the metal parts of a prosthesis. 5. In radiography, superimposition of an altered positive image on the original negative to produce an enhanced copy photographically. See: subtraction. (05 Mar 2000) |
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| unsharp masking | In radiography, superimposing a blurred negative of a radiograph to cancel large density differences, leaving fine detail more visible. (05 Mar 2000) |
| auditory perceptual disorders | Disorders of auditory perception manifesting as difficulties with auditory memory, speech perception and sound localization. Lesions are usually in the temporal lobe. (12 Dec 1998) |
| perceptual closure | The tendency to perceive an incomplete pattern or object as complete or whole. This includes the gestalt law of closure. (12 Dec 1998) |
| perceptual defense | Selective perceiving such that the individual protects himself from becoming aware of something unpleasant or threatening, e.g., obscene words are not heard correctly, or violent acts are not seen accurately. (12 Dec 1998) |
| perceptual disorders | Disturbances in recognizing and interpreting sensory stimuli dependent upon one's previous experience. (12 Dec 1998) |
| perceptual distortion | Lack of correspondence between the way a stimulus is commonly perceived and the way an individual perceives it under given conditions. (12 Dec 1998) |
| perceptual expansion | Development of an ability to recognise and interpret sensory stimuli through associations with past similar stimuli; perceptual expansion by relaxation of defenses is a goal of psychotherapy. (05 Mar 2000) |
Synonyms : Maskings, Perceptual, Perceptual Maskings
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