The role of suppression in psychophysical tone-on-tone masking

Joyce Rodríguez; Stephen T. Neely; Harisadhan Patra; Judy Kopun; Walt Jesteadt; Hongyang Tan; Michael P. Gorga

doi:10.1121/1.3257224

The role of suppression in psychophysical tone-on-tone masking

Joyce Rodríguez, Stephen T. Neely, Harisadhan Patra, Judy Kopun, Walt Jesteadt, Hongyang Tan, Michael P. Gorga

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

This study tested the hypothesis that suppression contributes to the difference between simultaneous masking (SM) and forward masking (FM). To obtain an alternative estimate of suppression, distortion-product otoacoustic emissions (DPOAEs) were measured in the presence of a suppressor tone. Psychophysical-masking and DPOAE-suppression measurements were made in 22 normal-hearing subjects for a 4000-Hz signal/ f₂ and two masker/suppressor frequencies: 2141 and 4281 Hz. Differences between SM and FM at the same masker level were used to provide a psychophysical estimate of suppression. The increase in L₂ to maintain a constant output (L _d) provided a DPOAE estimate of suppression for a range of suppressor levels. The similarity of the psychophysical and DPOAE estimates for the two masker/suppressor frequencies suggests that the difference in amount of masking between SM and FM is at least partially due to suppression.

Original language	English (US)
Pages (from-to)	361-369
Number of pages	9
Journal	Journal of the Acoustical Society of America
Volume	127
Issue number	1
DOIs	https://doi.org/10.1121/1.3257224
State	Published - 2010

ASJC Scopus subject areas

Arts and Humanities (miscellaneous)
Acoustics and Ultrasonics

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10.1121/1.3257224

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title = "The role of suppression in psychophysical tone-on-tone masking",

abstract = "This study tested the hypothesis that suppression contributes to the difference between simultaneous masking (SM) and forward masking (FM). To obtain an alternative estimate of suppression, distortion-product otoacoustic emissions (DPOAEs) were measured in the presence of a suppressor tone. Psychophysical-masking and DPOAE-suppression measurements were made in 22 normal-hearing subjects for a 4000-Hz signal/ f2 and two masker/suppressor frequencies: 2141 and 4281 Hz. Differences between SM and FM at the same masker level were used to provide a psychophysical estimate of suppression. The increase in L2 to maintain a constant output (L d) provided a DPOAE estimate of suppression for a range of suppressor levels. The similarity of the psychophysical and DPOAE estimates for the two masker/suppressor frequencies suggests that the difference in amount of masking between SM and FM is at least partially due to suppression.",

author = "Joyce Rodr{\'i}guez and Neely, {Stephen T.} and Harisadhan Patra and Judy Kopun and Walt Jesteadt and Hongyang Tan and Gorga, {Michael P.}",

note = "Funding Information: This work was supported by the NIH (Grant Nos. NIDCD R01 DC002251, R01 DC006350, T32 DC000013, and P30 004662). We thank Sarah Michael and Tom Creutz for their help with instrumentation, Sandy Estee for her assistance in subject recruitment, and the subjects who participated in the study. ",

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AU - Tan, Hongyang

AU - Gorga, Michael P.

N1 - Funding Information: This work was supported by the NIH (Grant Nos. NIDCD R01 DC002251, R01 DC006350, T32 DC000013, and P30 004662). We thank Sarah Michael and Tom Creutz for their help with instrumentation, Sandy Estee for her assistance in subject recruitment, and the subjects who participated in the study.

PY - 2010

Y1 - 2010

N2 - This study tested the hypothesis that suppression contributes to the difference between simultaneous masking (SM) and forward masking (FM). To obtain an alternative estimate of suppression, distortion-product otoacoustic emissions (DPOAEs) were measured in the presence of a suppressor tone. Psychophysical-masking and DPOAE-suppression measurements were made in 22 normal-hearing subjects for a 4000-Hz signal/ f2 and two masker/suppressor frequencies: 2141 and 4281 Hz. Differences between SM and FM at the same masker level were used to provide a psychophysical estimate of suppression. The increase in L2 to maintain a constant output (L d) provided a DPOAE estimate of suppression for a range of suppressor levels. The similarity of the psychophysical and DPOAE estimates for the two masker/suppressor frequencies suggests that the difference in amount of masking between SM and FM is at least partially due to suppression.

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The role of suppression in psychophysical tone-on-tone masking

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