An Analysis of the Masking Curves and Residual Inhibition Effects of Tinnitus Patients at Different Age with Less Severe Hearing Loss / 听力学及言语疾病杂志

ABSTRACT

Objective To investigate the relationships between tinnitus masking curve types and tinnitus re-sidual inhibition in the patients at different ages with normal hearing ,mild ,moderate severe hearing loss .Methods The minimum masking levels and residual inhibition of 335 patients with normal hearing ,mild to medium ,and mod-erate to severe hearing loss were tested and analyzed using the method of psychological acoustics .Results Ages and the duration of residual inhibition had a corresponding relationshipthe 19～30 years old group had corresponding relations with 0～40 seconds of residual inhibition ,while the 31～50 years old group with 81～100 seconds of resid-ual inhibition ,and the 50～63 years old group with 101～200 seconds of residual inhibition ,respectively .The 31～50 years old group and 51％ ～80％ residual inhibition had a corresponding relationship ;0％ ～30％ residual inhibi-tion group and parallel type of tinnitus masking curves had a corresponding relationship ,31％ ～50％ residual inhibi-tion group and separation type of the tinnitus masking curves had a corresponding relationship ,the groups of 51％ ～80％ and 81％ ～100％ residual inhibition with the types of convergent and overlapping tinnitus masking curves had corresponding relationship ,respectively .Conclusion There were different characteristics of tinnitus masking patients at different ages with different levels of hearing loss .The older people are ,the better effects and longer time of residual inhibition are .Those tinnitus patients with the tinnitus masking curve of convergent type and overlapping type showed a better tinnitus masking effect than the others .