| BMLD | binaural masking level difference |
|---|---|
| CMR | Comodulation Masking Release |
| MLD | Masking Level Difference |
| 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) |
|---|---|
| perceptual masking | The interference of one perceptual stimulus with another causing a decrease or lessening in perceptual effectiveness. (12 Dec 1998) |
| phenotypic | Relating to phenotype. (05 Mar 2000) |
| phenotypic threshold | A quantitative genetic trait with a continuous distribution termed its liability may generate two kinds of phenotype, according to whether the liability lies above or below some critical threshold at about which a radical change in behaviour occurs. For instance, blood uric acid level is a liability with an approximately gaussian distribution. At a critical point of chemical saturation (the threshold crystallization occurs and the resulting gout or nongout is a threshold trait. (05 Mar 2000) |
| phenotypic value | In quantitative genetics, the metrical quantity of some trait associated with a particular phenotype. (05 Mar 2000) |
| unsharp masking | In radiography, superimposing a blurred negative of a radiograph to cancel large density differences, leaving fine detail more visible. (05 Mar 2000) |
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