A further test of the linearity of temporal summation in forward masking

Christopher J. Plack, Samuele Carcagno, Andrew J. Oxenham

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    8 Scopus citations

    Abstract

    An experiment tested the hypothesis that the masking effects of two nonoverlapping forward maskers are summed linearly over time. First, the levels of individual noise maskers required to mask a brief 4-kHz signal presented at 10-, 20-, 30-, or 40-dB sensation level (SL) were found. The hypothesis predicts that a combination of the first masker presented at the level required to mask the 10-dB SL signal and the second masker presented at the level required to mask the 20-dB SL signal, should produce the same amount of masking as the converse situation (i.e., the first masker presented at the level required to mask the 20-dB SL signal and the second masker presented at the level required to mask the 10-dB SL signal), and similarly for the 30- and 40-dB SL signals. The results were consistent with the predictions.

    Original languageEnglish (US)
    Pages (from-to)1880-1883
    Number of pages4
    JournalJournal of the Acoustical Society of America
    Volume122
    Issue number4
    DOIs
    StatePublished - 2007

    Bibliographical note

    Funding Information:
    The authors thank the Editor and two anonymous reviewers for constructive comments on an earlier version of the manuscript. The work was supported by EPSRC (UK) Grant No. GR/N07219, BBSRC (UK) Grant No. BB/D012953/1, and NIDCD Grant No. R01 DC 03909.

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