Vol 7 No 1 (1976)
Article
Verification of the usefulness of short increment sensitivity index (SISI) test in determining bone conduction thresholds
How to Cite
K, N. (1). Verification of the usefulness of short increment sensitivity index (SISI) test in determining bone conduction thresholds. Journal of All India Institute of Speech and Hearing, 7(1), 97-102. Retrieved from http://203.129.241.91/jaiish/index.php/aiish/article/view/489
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
1. Byers, V. W. (1974) Conductive SISI test Ann. Otol. Rhin. Laryng. 83; 125-127.
2. Dirks, D. D., and Malmquist, C. M. (1969) Comparison of frontal and mastoid bone
conduction threshold in various conductive lesion J. Speech Hearing Res. 12;
725-746.
3 Harbert, F,, and Young, I M. (1969) The low frequency air bone gap in sensorineural
deafness. Ann. Otol. Rhin. Laryng. 78; 107-111.
4. Harbert, F., Young, I. M., and Weiss, B G. (1969) Clinical application of intensity
difference limen. Ada. Otolaryngol, 67; 435-443.
5. Martin, F. N-, and Salas, C. R. (1970). The SISI test and subjective loudness. J. Aud.
Res- 10; 368-371.
6. Owens, E. (1965). The SISI test and VIII nerve versus cochlear involvement. J. Speech
and Hearing Disord. 30; 252-262.
7. Swisher, L. P. Stephens, M. M. and Doehring, D. G., (1966). The effects of hearing
level and normal variability on sensitivity to intensity change..?. Aud. Res, 6; 249-259.
8. Yantis, P. A., Decker, R. L. (1964). On the short increment sensitivity index. J. Speech
and Hearing Disord. 29; 231-246
9. Young, I. M., Harbert, F. (1967) Significance of the SISI test. J. Aud. Res. 7;
303-311.
2. Dirks, D. D., and Malmquist, C. M. (1969) Comparison of frontal and mastoid bone
conduction threshold in various conductive lesion J. Speech Hearing Res. 12;
725-746.
3 Harbert, F,, and Young, I M. (1969) The low frequency air bone gap in sensorineural
deafness. Ann. Otol. Rhin. Laryng. 78; 107-111.
4. Harbert, F., Young, I. M., and Weiss, B G. (1969) Clinical application of intensity
difference limen. Ada. Otolaryngol, 67; 435-443.
5. Martin, F. N-, and Salas, C. R. (1970). The SISI test and subjective loudness. J. Aud.
Res- 10; 368-371.
6. Owens, E. (1965). The SISI test and VIII nerve versus cochlear involvement. J. Speech
and Hearing Disord. 30; 252-262.
7. Swisher, L. P. Stephens, M. M. and Doehring, D. G., (1966). The effects of hearing
level and normal variability on sensitivity to intensity change..?. Aud. Res, 6; 249-259.
8. Yantis, P. A., Decker, R. L. (1964). On the short increment sensitivity index. J. Speech
and Hearing Disord. 29; 231-246
9. Young, I. M., Harbert, F. (1967) Significance of the SISI test. J. Aud. Res. 7;
303-311.