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Related Experiment Videos

Diplacusis associated with bilateral high frequency hearing loss.

D O Robinson

    Journal of Speech and Hearing Research
    |March 1, 1975
    PubMed
    Summary

    Mild high-frequency hearing loss can cause diplacusis, a pitch perception issue. Individuals with hearing loss showed greater pitch variability and inconsistency compared to normal-hearing individuals.

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    Area of Science:

    • Audiology
    • Psychoacoustics
    • Sensorineural Hearing Loss

    Background:

    • Diplacusis, a distortion in pitch perception, can affect individuals with hearing impairments.
    • Understanding diplacusis is crucial for diagnosing and managing hearing loss.

    Purpose of the Study:

    • To investigate the presence and characteristics of diplacusis in individuals with mild bilateral high-frequency sensorineural hearing loss.
    • To compare pitch judgment abilities between normal-hearing and hearing-impaired subjects.

    Main Methods:

    • Utilized a psychophysical tracking procedure (method of adjustment-limits) for pitch judgments.
    • Presented standard and variable tones under intra-aural and interaural listening conditions.
    • Calculated excursion width and constant error from graphic representations of pitch adjustments.

    Main Results:

    • Diplacusis was identified in some subjects with hearing loss and one normal-hearing subject.
    • Hearing-impaired subjects demonstrated larger excursion widths in pitch judgments.
    • Subjects with hearing loss exhibited less consistency in pitch perception compared to normal-hearing subjects.

    Conclusions:

    • Mild bilateral high-frequency sensorineural hearing loss is associated with an increased incidence of pitch aberrations (diplacusis).
    • Hearing loss impacts the consistency and accuracy of pitch perception.

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