Modulation Detection Interference (MDI) in Listeners With Cochlear Hearing Loss

1994 ◽  
Vol 37 (3) ◽  
pp. 680-686 ◽  
Author(s):  
John H. Grose ◽  
Joseph W. Hall
Keyword(s):  
Hearing Loss ◽  
Tuning Curve ◽  
Target Tone ◽  
Frequency Effect ◽  
Filter Bandwidth ◽  
Auditory Grouping ◽  
Cochlear Hearing Loss ◽  
Modulation Rate ◽  
Modulation Detection ◽  
Modulation Detection Interference

This study compared Modulation Detection Interference (MDI) in listeners with cochlear hearing loss and in listeners with normal hearing. The study was motivated by questions of temporal resolution in the listeners with cochlear hearing loss as well as by their general difficulty in monitoring target sounds in the presence of competing background noise. The first experiment was similar to the MDI paradigm of Yost and Sheft (1989) and showed an equivalence in performance between the two groups of listeners: MDI brought about by an interfering tone comodulated with the target tone at 10 Hz was about 11 dB in both groups. There was also no difference in MDI magnitude when the modulation rate of the interferer changed to 25 Hz, indicating a lack of tuning to differential modulation rate in the gated paradigm employed here. The second experiment was analogous in concept to the measurement of a psychophysical tuning curve; the depth of modulation of the interfering carrier was adjusted to just interfere with the detection of a suprathreshold degree of modulation on the target carrier. The listeners with cochlear hearing loss performed quite similarly to the normal group, and the general lack of a frequency effect for the carrier tones suggested that MDI was relatively insensitive to presumed differences in auditory filter bandwidth between listeners. Because the basis of MDI has been hypothesized to be the fusion of the interfering tone with the target tone, the results of this study suggest that the auditory grouping factors presumed to underlie MDI are intact in listeners with hearing loss of cochlear origin.

Modulation Detection Interference in Listeners With Normal and Impaired Hearing

2002 ◽  
Vol 45 (2) ◽  
pp. 392-402 ◽  
Author(s):  
Sid P. Bacon ◽  
Jane M. Opie
Keyword(s):  
Hearing Loss ◽  
Normal Hearing ◽  
Individual Variability ◽  
Frequency Region ◽  
Unilateral Hearing Loss ◽  
Impaired Hearing ◽  
Sensation Level ◽  
Bilateral Hearing Loss ◽  
Cochlear Hearing Loss ◽  
Modulation Detection Interference

Listeners were asked to detect amplitude modulation (AM) of a target (or signal) carrier that was presented in isolation or in the presence of an additional (masker) carrier. The signal was modulated at a rate of 10 Hz, and the masker was unmodulated or was modulated at a rate of 2, 10, or 40 Hz. Nine listeners had normal hearing, 4 had a bilateral hearing loss, and 4 had a unilateral hearing loss; those with a unilateral loss were tested in both ears. The listeners with a hearing loss had normal hearing at 1 kHz and a 30- to 40-dB loss at 4 kHz. The carrier frequencies were 984 and 3952 Hz. In one set of conditions, the lower frequency carrier was the signal and the higher frequency carrier was the masker. In the other set, the reverse was true. For the impaired ears, the carriers were presented at 70 dB SPL. For the normal ears, either the carriers were both presented at 70 dB SPL or the higher frequency carrier was reduced to 40 dB SPL to simulate the lower sensation level experienced by the impaired ears. There was considerable individual variability in the results, and there was no clear effect of hearing loss. These results suggest that a mild, presumably cochlear hearing loss does not affect the ability to process AM in one frequency region in the presence of competing AM from another region.

scholarly journals Differences in Auditory Perception Between Young and Older Adults When Controlling for Differences in Hearing Loss and Cognition

2022 ◽  
Vol 26 ◽  
pp. 233121652110661
Author(s):  
Jennifer J. Lentz ◽  
Larry E. Humes ◽  
Gary R. Kidd
Keyword(s):  
Older Adults ◽  
Hearing Loss ◽  
Stream Segregation ◽  
Group Differences ◽  
Perceptual Skills ◽  
Multiple Stimulus ◽  
Masking Level Difference ◽  
Hearing Assessment ◽  
Modulation Detection ◽  
Modulation Detection Interference

This study was designed to examine age effects on various auditory perceptual skills using a large group of listeners (155 adults, 121 aged 60–88 years and 34 aged 18–30 years), while controlling for the factors of hearing loss and working memory (WM). All subjects completed 3 measures of WM, 7 psychoacoustic tasks (24 conditions) and a hearing assessment. Psychophysical measures were selected to tap phenomena thought to be mediated by higher-level auditory function and included modulation detection, modulation detection interference, informational masking (IM), masking level difference (MLD), anisochrony detection, harmonic mistuning, and stream segregation. Principal-components analysis (PCA) was applied to each psychoacoustic test. For 6 of the 7 tasks, a single component represented performance across the multiple stimulus conditions well, whereas the modulation-detection interference (MDI) task required two components to do so. The effect of age was analyzed using a general linear model applied to each psychoacoustic component. Once hearing loss and WM were accounted for as covariates in the analyses, estimated marginal mean thresholds were lower for older adults on tasks based on temporal processing. When evaluated separately, hearing loss led to poorer performance on roughly 1/2 the tasks and declines in WM accounted for poorer performance on 6 of the 8 psychoacoustic components. These results make clear the need to interpret age-group differences in performance on psychoacoustic tasks in light of cognitive declines commonly associated with aging, and point to hearing loss and cognitive declines as negatively influencing auditory perceptual skills.

Further evaluation of a model of loudness perception applied to cochlear hearing loss

1999 ◽  
Vol 106 (2) ◽  
pp. 898-907 ◽  
Author(s):  
Brian C. J. Moore ◽  
Brian R. Glasberg ◽  
Deborah A. Vickers
Keyword(s):  
Hearing Loss ◽  
Cochlear Hearing Loss
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