Thresholds for detecting interaural phase differences (IPDs) in sinusoidally amplitude-modulated pure tones were measured in seven normal-hearing listeners and nine listeners with bilaterally symmetric hearing losses of cochlear origin. The IPDs were imposed either on the carrier signal alone—not the amplitude modulation—or vice versa. The carrier frequency was 250, 500, or 1000 Hz, the modulation frequency 20 or 50 Hz, and the sound pressure level was fixed at 75 dB. A three-interval two-alternative forced choice paradigm was used. For each type of IPD (carrier or modulation), thresholds were on average higher for the hearing-impaired than for the normal listeners. However, the impaired listeners’ detection deficit was markedly larger for carrier IPDs than for modulation IPDs. This was not predictable from the effect of hearing loss on the sensation level of the stimuli since, for normal listeners, large reductions of sensation level appeared to be more deleterious to the detection of modulation IPDs than to the detection of carrier IPDs. The results support the idea that one consequence of cochlear damage is a deterioration in the perceptual sensitivity to the temporal fine structure of sounds.

1.
Bernstein
,
L. R.
, and
Trahiotis
,
C.
(
2002
). “
Enhancing sensitivity to interaural delays at high frequencies by using ‘transposed’ stimuli
,”
J. Acoust. Soc. Am.
112
,
1026
1036
.
2.
Buss
,
E.
,
Hall
,
J. W.
, and
Grose
,
J. H.
(
2004
). “
Temporal fine-structure cues to speech and pure tone modulation in observers with sensorineural hearing loss
,”
Ear Hear.
25
,
242
250
.
3.
Buus
,
S.
,
Scharf
,
B.
, and
Florentine
,
M.
(
1984
). “
Lateralization and frequency selectivity in normal and impaired hearing
,”
J. Acoust. Soc. Am.
76
,
77
86
.
4.
Colburn
,
H. S.
, and
Esquissaud
,
P.
(
1976
). “
An auditory-nerve model for interaural time discrimination of high-frequency complex stimuli
,”
J. Acoust. Soc. Am.
59
,
S23
.
5.
Durlach
,
N. I.
, and
Colburn
,
H. S.
(
1978
). “
Binaural phenomena
,” in
Handbook of Perception
, edited by
E. C.
Carterette
and
M. P.
Friedman
(
Academic
, New York), vol. IV, pp.
365
466
.
6.
Gabriel
,
K. J.
,
Koehnke
,
J.
, and
Colburn
,
H. S.
(
1992
). “
Frequency dependence of binaural performance in listeners with impaired binaural hearing
,”
J. Acoust. Soc. Am.
91
,
336
347
.
7.
Hafter
,
E. R.
,
Dye
,
R. H.
, and
Gilkey
,
R. H.
(
1979
). “
Lateralization of tonal signals which have neither onsets nor offsets
,”
J. Acoust. Soc. Am.
65
,
471
477
.
8.
Hall
,
J. W.
,
Tyler
,
R. S.
, and
Fernandes
,
M. A.
(
1984
). “
Factors influencing the masking level difference in cochlear hearing-impaired and normal-hearing listeners
,”
J. Speech Hear. Res.
27
,
145
154
.
9.
Harrison
,
R. V.
, and
Evans
,
E. F.
(
1979
). “
Some aspects of temporal coding by single cochlear fibres from regions of cochlear hair cell degeneration in the guinea pig
,”
Arch. Oto-Rhino-Laryngol.
224
,
71
78
.
10.
Hawkins
,
D. B.
, and
Wightman
,
F. L.
(
1980
). “
Interaural time discrimination ability of listeners with sensorineural hearing loss
,”
Audiology
19
,
495
507
.
11.
Johnson
,
D. H.
, and
Kiang
,
N. Y.
(
1976
). “
Analysis of discharges recorded simultaneously from pairs of auditory nerve fibers
,”
Biophys. J.
16
,
719
734
.
12.
Joris
,
P. X.
,
Carney
,
L. H.
,
Smith
,
P. H.
, and
Yin
,
T. C.
(
1994
). “
Enhancement of neural synchronization in the anteroventral cochlear nucleus. I. Responses to tones at the characteristic frequency
,”
J. Neurophysiol.
71
,
1022
1036
.
13.
Kaernbach
,
C.
(
1991
). ”
Simple adaptive testing with the weighted up-down method
,”
Percept. Psychophys.
49
,
227
229
.
14.
Klumpp
,
R. G.
, and
Eady
,
H. R.
(
1956
). “
Some measurements of interaural time difference thresholds
,”
J. Acoust. Soc. Am.
28
,
859
860
.
15.
Lacher-Fougère
,
S.
, and
Demany
,
L.
(
1998
). “
Modulation detection by normal and hearing-impaired listeners
,”
Audiology
37
,
109
121
.
16.
Miller
,
R. L.
,
Schilling
,
J. R.
,
Franck
,
K. R.
, and
Young
,
E. D.
(
1997
). “
Effects of acoustic trauma on the representation of the vowel ε in cat auditory nerve fibers
,”
J. Acoust. Soc. Am.
101
,
3602
3616
.
17.
Moore
,
B. C.J.
(
1973
). “
Frequency difference limens for short-duration tones
,”
J. Acoust. Soc. Am.
54
,
610
619
.
18.
Moore
,
B. C.J.
, and
Glasberg
,
B. R.
(
1986
). “
The relationship between frequency selectivity and frequency discrimination for subjects with unilateral and bilateral cochlear impairments
,” in
Auditory Frequency Selectivity
, edited by
B. C.J.
Moore
and
R. D.
Patterson
(
Plenum
, New York).
19.
Moore
,
B. C.J.
, and
Moore
,
G. A.
(
2003
). “
Discrimination of the fundamental frequency of complex tones with fixed and shifting spectral envelopes by normally hearing and hearing-impaired subjects
,”
Hear. Res.
182
,
153
163
.
20.
Moore
,
B. C.J.
, and
Sek
,
A.
(
1996
). “
Detection of frequency modulation at low modulation rates: Evidence for a mechanism based on phase-locking
,”
J. Acoust. Soc. Am.
100
,
2320
2331
.
21.
Moore
,
B. C.J.
, and
Skrodzka
,
E.
(
2002
). “
Detection of frequency modulation by hearing-impaired listeners: Effects of carrier frequency, modulation rate, and added amplitude modulation
,”
J. Acoust. Soc. Am.
111
,
327
335
.
22.
Oxenham
,
A. J.
, and
Dau
,
T.
(
2004
). “
Masker phase effects in normal-hearing and hearing-impaired listeners: Evidence for peripheral compression at low signal frequencies
,”
J. Acoust. Soc. Am.
116
,
2248
2257
.
23.
Rose
,
J. E.
,
Brugge
,
J. F.
,
Anderson
,
D. J.
, and
Hind
,
J. E.
(
1967
). “
Phase-locked response to low-frequency tones in single auditory nerve fibers of the squirrel monkey
,”
J. Neurophysiol.
30
,
769
793
.
24.
Smoski
,
W. J.
, and
Trahiotis
,
C.
(
1986
). “
Discrimination of interaural temporal disparities by normal-hearing listeners and listeners with high-frequency sensorineural hearing loss
,”
J. Acoust. Soc. Am.
,”
79
,
1541
1547
.
25.
Stellmack
,
M. A.
,
Viemeister
,
N. F.
, and
Byrne
,
A. J.
(
2005
). “
Discrimination of interaural phase differences in the envelopes of sinusoidally amplitude-modulated 4-kHz tones as a function of modulation depth
,”
J. Acoust. Soc. Am.
118
,
346
352
.
26.
Summers
,
V.
, and
Leek
,
M. R.
(
1998
). “
Masking of tones and speech by Schroeder-phase harmonic complexes in normally hearing and hearing-impaired listeners
,”
Hear. Res.
118
,
139
150
.
27.
Woolf
,
N. K.
,
Ryan
,
A. F.
, and
Bone
,
R. C.
(
1981
). “
Neural phase-locking properties in the absence of cochlear outer hair cells
,”
Hear. Res.
4
,
335
346
.
28.
Young
,
E. D.
, and
Sachs
,
M. B.
(
1979
). “
Representation of steady-state vowels in the temporal aspects of the discharge patterns of populations of auditory-nerve fibers
,”
J. Acoust. Soc. Am.
66
,
1381
1403
.
29.
Zurek
,
P. M.
, and
Formby
,
C.
(
1981
). “
Frequency discrimination ability of hearing-impaired listeners
,”
J. Speech Hear. Res.
24
,
108
112
.
30.
Zwislocki
,
J.
, and
Feldman
,
R. S.
(
1956
). “
Just noticeable differences in dichotic phase
,”
J. Acoust. Soc. Am.
28
,
860
864
.
You do not currently have access to this content.