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Related Experiment Videos

Tonal adaptation.

H Barratt, J D Hood

    British Journal of Audiology
    |November 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Continuous pure tone loudness does not change over time unless interrupted. Interrupted tones induce loudness loss, but do not fully explain changes in tonal quality or adaptation.

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    Area of Science:

    • Auditory perception
    • Psychoacoustics
    • Sensory adaptation

    Background:

    • Loudness of continuous pure tones is generally stable over time.
    • Interrupted tones can lead to perceived loudness loss.
    • Changes in tonal quality (timbre) also occur with sustained tones.

    Purpose of the Study:

    • To investigate the mechanisms underlying loudness perception of continuous vs. interrupted tones.
    • To differentiate between sensory adaptation and higher-order perceptual processes in auditory judgments.
    • To explain the phenomenon of 'tonal adaptation' in sustained pure tones.

    Main Methods:

    • Analysis of loudness judgments for continuous pure tones.
    • Comparison with loudness adaptation observed in interrupted tone paradigms.

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  • Examination of changes in tonal quality over time.

    • Main Results:

    • Loudness of a continuous tone remains constant without interruption.
    • Interrupted tones induce a measurable loudness loss.
    • Observed tonal adaptation in sustained tones is distinct from loudness adaptation measured by specific procedures.

    Conclusions:

    • Interrupted tones are not solely responsible for all observed loudness changes.
    • Tonal adaptation in sustained tones involves different mechanisms than those measured by loudness adaptation procedures.
    • Judging isolated continuous tone loudness involves complex, higher-order perceptual processes beyond basic sensation.