Masking Level Difference (MLD) testing has become an important addition to clinical audiology test batteries. Although data are available relating the MLD to a variety of pathological conditions, little information exists dealing with learning disabled individuals. This study presents normative MLD data for a population of 90 learning disabled individuals. Implications for the auditory assessment of the Learning Disabled as well as for the establishment of "local" MLD norms are discussed.
Get full access to this article
View all access options for this article.
References
1.
Bruning, J. & Kintz, B. (1968). Computational Handbook of Statistics, Glenview, Ill.: Scott, Foresman.
2.
Cullen, J.K., JR. & Thompson, C.L. (1979). Masking release in subjects with temporal lobe resections. Archives of Otolaryngology , 100:113-116.
3.
Durlach, N.I. (1972). Binaural signal detection. Equalization and cancellation theory. In J. Tobias (Ed.) Foundations of Modern Auditory Theory, VoL 2, New York : Academic Press.
4.
Durlach, N.I. & Colburn, H.S. (1978). Binaural phenomena. In E. Carterette & M. Friedman (Eds.), Handbook of Perception (Vol. 4), New York: Academic Press.
5.
Green, D.M. & Yost, W.A. (1976). Binaural analysis. In W. Keidel & D. Neff (Eds.) Handbook of Sensory Physiology. New York : Springer-Verlag.
6.
Hall, J.W., Ryler, R.S. & Fernandes, M.A. (1984). Factors influencing the masking level difference in cochlear hearing-impaired and normal hearing listeners . Journal of Speech and Hearing Research, 27, 145-154.
7.
Hannley, M. & Jerger, J. (1980). Masking level difference: Evidence for contribution of superior olivary complex. Journal of the Acoustical Society of America (A), 68, S22.
8.
Hirsh, I.J. (1948). The influence of interaural phase on interaural summation and inhibition. Journal of the Acoustical Society of America, 20, 536-544.
9.
Jeffress, L.A. & McFadden, D. (1971). Differences of interaural phase and level in detection and lateralization. Journal of the Acoustical Society of America , 49, 1167-1179.
10.
Licklider, J.D. (1948). The influence of interaural phase relations upon the masking of speech by white noise. Journal of the Acoustical Society of America, 20, 150-159.
Noffsinger, D. & Kurdziel, S.A. (1979). Assessment of central auditory lesions. In W. Rintelmann (Ed.) Hearing Assessment. Baltimore: University Park Press.
13.
Olsen, W.O. & Noffsinger, D. (1976). Masking level differences for cochlear and brainstem lesions. Annals of Otolaryngology , 85, 820-825.
14.
Olsen, W.O., Noffsinger, D. & Carhart, R. (1976). Masking level differences found in clinical populations . Audiology, 15, 287-301.
15.
Roush, J. & Tait, C.A. (1984). Binaural fusion, masking level differences, and auditory brain stem responses in children with language-learning disabilities . Ear and Hearing, 5, 37-41.
16.
Schoeny, Z.G. & Carhart, R. (1971). Effects of unilateral Meniere's disease on masking level differences. Journal of the Acoustical Society of America , 50, 1143-1150.
17.
Sweetlow, R. & Reddell, R. (1978). The use of masking level differences in the identification of children with perceptual problems. Journal of the American Auditory Society, 4, 52-56.
18.
Waryas, P.A. (1982). The relationship between masking level differences (MLD's) and central auditory tests in a learning disabled population. Journal of Private Practice in Speech-Language Pathology and Audiology , 4, 10-14.
