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DOI: 10.3766/jaaa.283ceu
JAAA CEU Program
Volume 28, Number 3 (March 2017)Publication History
Publication Date:
26 June 2020 (online)
Questions refer to Tan et al, ‘‘Pitch Matching between Electrical Stimulation of a Cochlear Implant and Acoustic Stimuli Presented to a Contralateral Ear with Residual Hearing,’’ 187–199.
Learner Outcomes:
Readers of this article should be able to:
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Discuss how pitch perception changes after cochlear implantation.
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List two methods for evaluating nonsensory bias in pitch perception of individuals with cochlear implants.
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One reason for success of a cochlear implant (CI) electrode design more responsive to lower frequencies apically, and more responsive to higher frequencies along the basal section, is that it:
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mimics the tonotopic organization of the cochlea
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improves frequency resolution
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reduces the number of electrodes in the cochlea
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An equation originally derived to estimate characteristic frequencies along the organ of Corti (OC) was published by:
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Cohen et al (1996)
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Greenwood (1990)
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Tan et al (2012)
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Cochlear implants stimulate neurons in the:
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cochlear nuclei
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organ of Corti
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spiral ganglion (SG)
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A check for nonsensory bias in pitch comparisons was based on:
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correlations between starting frequency and final pitch match across runs
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range of starting frequencies used between initial and final pitch matches
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size of standard deviations between initial and final pitch match values
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The Frequency Allocation Table (FAT) curve represents the:
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frequency position function imposed by a CI
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frequency position function prior to placement of a CI
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pitch perception of normal-hearing listeners
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The number of participants identified as demonstrating complete adaptation was:
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one
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two
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five
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Adaptation demonstrated by Participant Ten was categorized as:
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complete
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incomplete
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near complete
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For nearly every participant, pitch matching (PM) curves demonstrated frequency values ______ the SG curve.
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equal to
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higher than
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lower than
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About ____ of participants demonstrated PM curves identical or very close to their FAT curves.
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one-third
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one-half
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three-fourths
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Previous research cited by the authors reporting significant changes in PM over time included:
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McDermott et al (2009)
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Svirsky et al (2001)
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Vermeire et al (2015)
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#
No conflict of interest has been declared by the author(s).