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Related Experiment Videos

Reliability of performance for dichotic listening using two response modes

K Millay, R J Roeser, J J Godfrey

    Journal of Speech and Hearing Research
    |September 1, 1977
    PubMed
    Summary

    This study on dichotic listening found that neither the number of correct responses nor right-ear advantage changed significantly over time. Individual differences in accuracy and ear laterality were consistent across sessions.

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    Area of Science:

    • Auditory Neuroscience
    • Psychoacoustics
    • Speech Perception

    Background:

    • Dichotic listening tasks are used to assess auditory processing and brain lateralization.
    • Understanding ear advantage in speech perception is crucial for diagnosing auditory processing disorders.

    Purpose of the Study:

    • To investigate the stability of dichotic listening performance over time.
    • To compare performance between two response modes: two-choice forced and one-choice preferred.
    • To examine individual consistency in accuracy and ear laterality.

    Main Methods:

    • Eight normal-hearing adult females participated in eight weekly sessions.
    • Stop consonant-vowel syllables were presented dichotically.
    • Performance was assessed using total correct responses and percent of error under two response conditions.

    Main Results:

    • Neither total correct responses nor right-ear advantage varied significantly across sessions for either response mode.
    • Ear laterality, measured by percent error, did not differ between the two response modes.
    • Significant individual differences in accuracy and ear laterality were observed, but participants remained consistent over time.

    Conclusions:

    • Dichotic listening performance, including right-ear advantage, is stable over eight weekly sessions in normal-hearing adults.
    • Response mode (two-choice forced vs. one-choice preferred) did not impact ear laterality.
    • Individual auditory processing and lateralization patterns are reliable over time.

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