Subject responses were measured for individual narrow-band reproducible stimuli in a low-frequency tone-in-noise detection task. Both and conditions were examined. The goal of the experiment was to determine the relative importance of envelope and fine-structure cues. Therefore, chimeric stimuli were generated by recombining envelopes and fine structures from different reproducible stimuli. Detection judgments for noise-alone or tone-plus-noise stimuli that had common envelopes but different fine structures or common fine structures but different envelopes were compared. The results showed similar patterns of responses to stimuli that shared envelopes, indicating the importance of envelope cues; however, fine-structure cues were also shown to be important. The relative weight assigned to envelope and fine-structure cues varied across subjects and across interaural conditions. The results also indicated that envelope and fine-structure information are not processed independently. Implications for monaural and binaural models of masking are discussed.
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October 2009
October 01 2009
Diotic and dichotic detection with reproducible chimeric stimuli
Sean A. Davidson;
Sean A. Davidson
Department of Biomedical and Chemical Engineering, Institute for Sensory Research,
Syracuse University
, 621 Skytop Road, Syracuse, New York 13244
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Robert H. Gilkey;
Robert H. Gilkey
Department of Psychology,
Wright State University
, Dayton, Ohio 45435 and Human Effectiveness Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base
, Ohio 45433
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H. Steven Colburn;
H. Steven Colburn
Boston University Hearing Research Center, Department of Biomedical Engineering,
Boston University
, 44 Cummington Street, Boston, Massachusetts 02215
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Laurel H. Carney
Laurel H. Carney
a)
Department of Biomedical and Chemical Engineering, Department of Electrical Engineering and Computer Science, and The Institute for Sensory Research,
Syracuse University
, 621 Skytop Road, Syracuse, New York 13244
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a)
Author to whom correspondence should be addressed. Present address: Department of Biomedical Engineering, Department of Neurobiology and Anatomy, University of Rochester, 601 Elmwood Ave., P.O. Box 603, Rochester, NY 14642. Electronic mail: laurel.carney@rochester.edu
J. Acoust. Soc. Am. 126, 1889–1905 (2009)
Article history
Received:
January 03 2008
Accepted:
July 21 2009
Connected Content
A companion article has been published:
An evaluation of models for diotic and dichotic detection in reproducible noises
Citation
Sean A. Davidson, Robert H. Gilkey, H. Steven Colburn, Laurel H. Carney; Diotic and dichotic detection with reproducible chimeric stimuli. J. Acoust. Soc. Am. 1 October 2009; 126 (4): 1889–1905. https://doi.org/10.1121/1.3203996
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