Sek and Moore [J. Acoust. Soc. Am.106, 351

359
(1999)] and Lyzenga et al [J. Acoust. Soc. Am.116, 491
501
(2004)]
found that the just-noticeable frequency difference between two pure tones relatively close in time is smaller when these tones are smoothly connected by a frequency glide than when they are separated by a silent interval. This “glide effect” was interpreted as evidence that frequency glides can be detected by a specific auditory mechanism, not involved in the detection of discrete, time-delayed frequency changes. Lyzenga et al. argued in addition that the glide-detection mechanism provides little information on the direction of frequency changes near their detection threshold. The first experiment reported here confirms the existence of the glide effect, but also shows that it disappears when the glide is not connected smoothly to the neighboring steady tones. A second experiment demonstrates that the direction of a 750ms frequency glide can be perceptually identified as soon as the glide is detectable. These results, and some other observations, lead to a new interpretation of the glide effect, and to the conclusion that continuous frequency changes may be detected in the same manner as discrete frequency changes.

1.
Carlyon
,
R. P.
,
Micheyl
,
C.
,
Deeks
,
J. M.
, and
Moore
,
B. C. J.
(
2004
). “
Auditory processing of real and illusory changes in FM phase
,”
J. Acoust. Soc. Am.
116
,
3629
3639
.
2.
Cusack
,
R.
, and
Carlyon
,
R. P.
(
2003
). “
Perceptual asymmetries in audition
,”
J. Exp. Psychol. Hum. Percept. Perform.
26
,
713
725
.
3.
Demany
,
L.
,
Pressnitzer
,
D.
, and
Semal
,
C.
(
2008
). “
On the binding of successive tones: Implicit versus explicit pitch comparisons
,”
J. Acoust. Soc. Am.
123
,
3049
.
4.
Demany
,
L.
, and
Ramos
,
C.
(
2005
). “
On the binding of successive sounds: Perceiving shifts in nonperceived pitches
,”
J. Acoust. Soc. Am.
117
,
833
841
.
5.
Demany
,
L.
, and
Ramos
,
C.
(
2007
). “
A paradoxical aspect of auditory change detection
,” in
Hearing—From Sensory Processing to Perception
, edited by
B.
Kollmeier
,
G.
Klump
,
V.
Hohmann
,
U.
Langemann
,
M.
Mauermann
,
S.
Uppenkamp
, and
J.
Verhey
(
Springer
,
Heidelberg
), pp.
313
321
.
6.
Demany
,
L.
, and
Semal
,
C.
(
1989
). “
Detection thresholds for sinusoidal frequency modulation
,”
J. Acoust. Soc. Am.
85
,
1295
1301
.
7.
Dooley
,
G. J.
, and
Moore
,
B. C. J.
(
1988
). “
Detection of linear frequency glides as a function of frequency and duration
,”
J. Acoust. Soc. Am.
84
,
2045
2057
.
8.
Green
,
D. M.
, and
Swets
,
J. A.
(
1974
).
Signal Detection Theory and Psychophysics
(
Krieger
,
New York
).
9.
Hartmann
,
W. M.
(
1997
).
Signals, Sound, and Sensation
(
AIP
,
Woodbury, New York
).
10.
Hartmann
,
W. M.
, and
Klein
,
M. A.
(
1980
). “
Theory of frequency modulation detection for low modulation frequencies
,”
J. Acoust. Soc. Am.
67
,
935
946
.
11.
Kaernbach
,
C.
(
1991
). “
Simple adaptive testing with the weighted up-down method
,”
Percept. Psychophys.
49
,
227
229
.
12.
Kay
,
R. H.
(
1982
). “
Hearing of modulation in sounds
,”
Physiol. Rev.
62
,
894
975
.
13.
Lyzenga
,
J.
,
Carlyon
,
R. P.
, and
Moore
,
B. C. J.
(
2004
). “
The effects of real and illusory glides on pure-tone frequency discrimination
,”
J. Acoust. Soc. Am.
116
,
491
501
.
14.
Madden
,
J. P.
, and
Fire
,
K. M.
(
1997
). “
Detection and discrimination of frequency glides as a function of direction, duration, frequency span, and center frequency
,”
J. Acoust. Soc. Am.
102
,
2920
2924
.
15.
Micheyl
,
C.
,
Kaernbach
,
C.
, and
Demany
,
L.
(
2008
). “
An evaluation of psychophysical models of auditory change perception
,”
Psychol. Rev.
,
115
,
1069
1083
.
16.
Moody
,
D. B.
,
Cole
,
D.
,
Davidson
,
L. M.
, and
Stebbins
,
W. C.
(
1984
). “
Evidence for a reappraisal of the psychophysical selective adaptation paradigm
,”
J. Acoust. Soc. Am.
76
,
1076
1079
.
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.
(
2004
).
An Introduction to the Psychology of Hearing
, 5th ed. (
Elsevier
,
Amsterdam
).
19.
Nabelek
,
I. V.
, and
Hirsh
,
I. J.
(
1969
). “
On the discrimination of frequency transitions
,”
J. Acoust. Soc. Am.
45
,
1510
1519
.
20.
Sek
,
A.
, and
Moore
,
B. C. J.
(
1999
). “
Discrimination of frequency steps linked by glides of various durations
,”
J. Acoust. Soc. Am.
106
,
351
359
.
21.
Semal
,
C.
, and
Demany
,
L.
(
2006
). “
Individual differences in the sensitivity to pitch direction
,”
J. Acoust. Soc. Am.
120
,
3907
3915
.
22.
Sergeant
,
R. L.
, and
Harris
,
J. D.
(
1962
). “
Sensitivity to unidirectional frequency modulation
,”
J. Acoust. Soc. Am.
34
,
1625
1628
.
23.
Wakefield
,
G. H.
, and
Viemeister
,
N. F.
(
1984
). “
Selective adaptation to linear frequency-modulated sweeps: Evidence for direction-specific FM channels?
,”
J. Acoust. Soc. Am.
75
,
1588
1592
.
24.
Whitfield
,
I. C.
, and
Evans
,
E. F.
(
1965
). “
Responses of auditory cortical neurons to stimuli of changing frequency
,”
J. Neurophysiol.
28
,
655
672
.
25.
Zhang
,
L. I.
,
Tan
,
A. Y. Y.
,
Schreiner
,
C. E.
, and
Merzenich
,
M. M.
(
2003
). “
Topography and synaptic shaping of direction selectivity in primary auditory cortex
,”
Nature (London)
424
,
201
205
.
You do not currently have access to this content.