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Results 71 - 72 of 72
Presenter(s): Vishakha W Rawool, PhD; Chelsea Campbell, AuD
Credit(s): PDHs: 0.5, ASHA CEUs*: 0.05
Summary: This session analyzed the correlation between the binaural summation measured via acoustic reflex thresholds and the results of the masking level difference established for 500 Hz in 60 participants. The Pearson Correlation Analyses between the MLD values and the binaural summation revealed a significant (r= 0.277; p = 0.032) correlation when the probe stimulus was presented to the right ear and the reflex evoking clicks were presented to the left ear. Although the correlation is significant, the effect size is small, suggesting that each measure may provide information about both similar and different aspects of binaural processing and can be included in a battery of auditory processing disorders (APD) tests.
Presenter(s): Mark A. Parker, PhD, CCC-A, F-AAA
Credit(s): PDHs: 0.5, ASHA CEUs*: 0.05
Summary: The audiogram is a poor representation of a person's underlying otopathology and can therefore be a poor predictor of a person's hearing impairment. For example, persons with audiometric thresholds within normal limits may experience hearing impairment such as difficulty hearing in noise. Cochlear synaptopathy and outer hair cell dysfunction are two otopathologies undetected by the standard audiogram (a.k.a. Hidden Hearing Loss), but outer hair cell function plays a primary role in hearing in noise performance. A third undetected otopathology is cochlear untuning, which occurs secondary to outer hair cell damage. This course discusses each of these otopathologies and presents clinical normative data that can be used to differentially diagnose each otopathology.
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