Vol 10 No 1 (1979)
Article
Verification of the usefulness for short increment sensitivity index (SISI) test in determining bone conduction thresholds
How to Cite
K, N. (1). Verification of the usefulness for short increment sensitivity index (SISI) test in determining bone conduction thresholds. Journal of All India Institute of Speech and Hearing, 10(1), 191. Retrieved from http://203.129.241.91/jaiish/index.php/aiish/article/view/757
Abstract
Swisher, Stephens and Doehring (1966) suggested that the SISI test might be interpreted: as an indirect measure of bone conduction thresholds. Swisher et al (1966) also showed that normal and non-adapting sensorineural impaired ears discriminated a signal of 1 dB or less equally well at equivalent SPL. The study by Young and Harbert (1967) showed that at SPL's
of 45 and above every normal subject showed a SISI score of 65 per cent or higher for all frequencies. In general, a high SISI score occurs when at least 60 dB SPL reaches the inner ear.
Sound pressure level (SPL) reaching the inner ear is the ;determining factor in the perception of 1 dB increments (Young and Harbert, 1967; Harbert, Young and Weiss, 1969; Martin and Salas, 1970 ).
References
Byers, V. W. (1974) Conductive SISI test Ann. Otol Rhin. Laryntz 83. 125-127.
Dirks? D.D. and Malmquist, C. M. (1969) Conlparison of frontal and mastoid bone conduction
threshold in variou5 conductive lesion J. Spe~ch Hearing Res. 12 : 725-746.
Harbert, F., and Young, I.M. (1969) The lo'w frequency air bone gap in sensorineural deafness.
Ann. Oro/. Rhin. Larynr. 73; 107-111.
Harbert, F., Young, I.M., and Weiss, B. G. (1969) Clinical application of intensity difference
limen. Acta Otolaryngal. 67 ; 435-443.
Martin, F.N. and Salas, C. R. (1970). The SISI test and subjective loudness. J. Aud. Res. 10 ;
368-371.
Owens, E. (1965). The SISI test and VIII nerve versus cochlear involvement. J. Sptech and
and Hearing Disord. 30 ; 252-262.
. Swisher, L. P. Stephens, M. M. and Doehring, D. G., (196~). The effects of hearing level and
normal variability on sensitivity to intensity change. J. Aud. Res. 6 ; 249-259.
Yantis, P. A. Decker, R. L. (1964). On the short increment sensitivity index. J. Speech and
Hearing Disord. 29: 231-246.
Young, I. M. Harbert,F. (1967) Significance of the SISI test. J. Aud. Res. 7 ; 303..311.
Dirks? D.D. and Malmquist, C. M. (1969) Conlparison of frontal and mastoid bone conduction
threshold in variou5 conductive lesion J. Spe~ch Hearing Res. 12 : 725-746.
Harbert, F., and Young, I.M. (1969) The lo'w frequency air bone gap in sensorineural deafness.
Ann. Oro/. Rhin. Larynr. 73; 107-111.
Harbert, F., Young, I.M., and Weiss, B. G. (1969) Clinical application of intensity difference
limen. Acta Otolaryngal. 67 ; 435-443.
Martin, F.N. and Salas, C. R. (1970). The SISI test and subjective loudness. J. Aud. Res. 10 ;
368-371.
Owens, E. (1965). The SISI test and VIII nerve versus cochlear involvement. J. Sptech and
and Hearing Disord. 30 ; 252-262.
. Swisher, L. P. Stephens, M. M. and Doehring, D. G., (196~). The effects of hearing level and
normal variability on sensitivity to intensity change. J. Aud. Res. 6 ; 249-259.
Yantis, P. A. Decker, R. L. (1964). On the short increment sensitivity index. J. Speech and
Hearing Disord. 29: 231-246.
Young, I. M. Harbert,F. (1967) Significance of the SISI test. J. Aud. Res. 7 ; 303..311.