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The SISI test: a review. Part II
Summary
The Speech Intelligibility in Sensorineural Impairment (SISI) test effectively detects retrocochlear issues, especially with contralateral masking. Its validity is confirmed even with tone decay, offering crucial insights into auditory function.
Area of Science:
- Audiology
- Neuroscience
- Psychoacoustics
Background:
- The Speech Intelligibility in Sensorineural Impairment (SISI) test is a key psychoacoustic tool.
- Understanding its nuances is crucial for accurate auditory diagnosis.
Purpose of the Study:
- To review modifications of the SISI test.
- To evaluate the impact of contralateral masking and tone decay on SISI results.
- To compare SISI with other site-of-lesion tests.
Main Methods:
- Analysis of SISI test performance under various conditions.
- Inclusion of contralateral masking and assessment of tone decay effects.
- Comparative analysis with other psychoacoustic tests.
Main Results:
- High-level SISI testing shows promise for detecting retrocochlear impairments.
- Contralateral masking is recommended when cross-hearing is present, with specific noise level guidelines.
- SISI remains a valid measure even in the presence of tone decay.
Conclusions:
- The SISI test, particularly at high levels and with appropriate masking, is valuable for identifying retrocochlear pathologies.
- Tone decay does not invalidate SISI results.
- High SISI scores in cochlear impairment do not signify enhanced auditory acuity.