Some Essential Calibration Measurements in CAPD Testing

Frank Musiek, Ph.D., University of Arizona Many years ago, in one of my first job interviews, I was asked what the difference and related implications was between electronic calibration and acoustic calibration. That question is one I never forgot because at the time, I was a little surprised. But, after thinking about it, I realized…

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Masking Level Differences (MLDs) in selected clinical populations : An overview

Frank Musiek, PhD   Background Masking level differences (MLDs), also termed bilateral masking level differences (BMLDs), were introduced to the scientific community by Ira Hirsh and J.C.R. Licklider in independent reports in 1948. Hirsh reported on MLDs for tonal stimuli and Licklider for speech stimuli. Though it is not the intent of this brief communication…

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Decruitment and the Growth of Loudness in the Ears of Brain-Damaged Adults (1973): A Historical Article Review from the Archives

A Historical Vignette . . . Editor’s note: Occasionally Pathways will issue a review and discussion of a historical article that at the time of publication that was innovative and of significant value. The following is such an article – with its value carrying over to the present day. This article was brought to our…

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Congenital and Acquired Amusia as Categories of CAPD (Part 2)

Carrie M. Clancy, B.A., M.M. Graduate Student, Department of Speech, Language and Hearing Sciences, University of Arizona   Part 1 of this article provided a brief overview of congenital and acquired amusia as forms of CAPD. Part 2, presented here, is intended to suggest potential avenues for continued research regarding both congenital and acquired amusias.…

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