 |
Next Article 
Journal of Neuroscience, Vol 6, 3413-3422, Copyright © 1986 by Society for Neuroscience
Selectivity for interaural time difference in the owl's midbrain
T Takahashi and M Konishi
The barn owl uses the interaural difference in the timing of sounds to
determine the azimuth of the source. When the sound has a wide frequency
band, localization is precise. When localizing tones, however, the barn owl
errs in a manner that suggests that it is confused by phantom targets. We
report a neural equivalent of these phenomena as they are observed in the
space-specific neuron of the owl's inferior colliculus. When stimulated
with a tone, the space- specific neuron discharges maximally at interaural
time differences (ITDs) that differ by one period of the stimulus tone.
Changing the stimulus frequency changes the period of the ITD-response
functions, but 1 ITD evokes, in most neurons, a maximal response,
regardless of frequency. This ITD is the characteristic delay (CD). When
stimulated with noise, there is a maximal response only to ITDs at or near
the CD. Thus, the space-specific neuron can unambiguously signal the CD,
provided that the signal contains more than 1 frequency. The preferential
response to a single ITD, which is observed with noise stimuli, was also
observed when the summed waveform of the best frequency and another tone,
F2, was presented. The response of the space-specific neuron to these
2-tone stimuli could not be accounted for by the summing or averaging of
the ITD-response functions obtained with the best frequency or F2 alone,
suggesting that nonlinear neural processes are involved.
This article has been cited by other articles:
|
|
|
|
 
P. X. Joris, D. H. Louage, and M. van der Heijden
Temporal Damping in Response to Broadband Noise. II. Auditory Nerve
J Neurophysiol,
April 1, 2008;
99(4):
1942 - 1952.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. Mc Laughlin, B. Van de Sande, M. van der Heijden, and P. X. Joris
Comparison of Bandwidths in the Inferior Colliculus and the Auditory Nerve. I. Measurement Using a Spectrally Manipulated Stimulus
J Neurophysiol,
November 1, 2007;
98(5):
2566 - 2579.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
G. B. Christianson and J. L. Pena
Preservation of Spectrotemporal Tuning Between the Nucleus Laminaris and the Inferior Colliculus of the Barn Owl
J Neurophysiol,
May 1, 2007;
97(5):
3544 - 3553.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
H. Wagner, A. Asadollahi, P. Bremen, F. Endler, K. Vonderschen, and M. von Campenhausen
Distribution of Interaural Time Difference in the Barn Owl's Inferior Colliculus in the Low- and High-Frequency Ranges
J. Neurosci.,
April 11, 2007;
27(15):
4191 - 4200.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
Y. Gutfreund and E. I. Knudsen
Adaptation in the Auditory Space Map of the Barn Owl
J Neurophysiol,
August 1, 2006;
96(2):
813 - 825.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
G. B. Christianson and J. L. Pena
Noise reduction of coincidence detector output by the inferior colliculus of the barn owl.
J. Neurosci.,
May 31, 2006;
26(22):
5948 - 5954.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. L. Perez and J. L. Pena
Comparison of Midbrain and Thalamic Space-Specific Neurons in Barn Owls
J Neurophysiol,
February 1, 2006;
95(2):
783 - 790.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
A. Matsushita and M. Kawasaki
Neuronal Sensitivity to Microsecond Time Disparities in the Electrosensory System of Gymnarchus niloticus
J. Neurosci.,
December 7, 2005;
25(49):
11424 - 11432.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. W. Spitzer, A. D. S. Bala, and T. T. Takahashi
A Neuronal Correlate of the Precedence Effect Is Associated With Spatial Selectivity in the Barn Owl's Auditory Midbrain
J Neurophysiol,
October 1, 2004;
92(4):
2051 - 2070.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
S. M. N. Woolley and J. H. Casseday
Response Properties of Single Neurons in the Zebra Finch Auditory Midbrain: Response Patterns, Frequency Coding, Intensity Coding, and Spike Latencies
J Neurophysiol,
January 1, 2004;
91(1):
136 - 151.
[Abstract]
[Full Text]
|
|
|
|
|
|
|
M. L. Spezio and T. T. Takahashi
Frequency-Specific Interaural Level Difference Tuning Predicts Spatial Response Patterns of Space-Specific Neurons in the Barn Owl Inferior Colliculus
J. Neurosci.,
June 1, 2003;
23(11):
4677 - 4688.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. L. Pena and M. Konishi
From Postsynaptic Potentials to Spikes in the Genesis of Auditory Spatial Receptive Fields
J. Neurosci.,
July 1, 2002;
22(13):
5652 - 5658.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
D. R. Euston and T. T. Takahashi
From Spectrum to Space: The Contribution of Level Difference Cues to Spatial Receptive Fields in the Barn Owl Inferior Colliculus
J. Neurosci.,
January 1, 2002;
22(1):
284 - 293.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
C. H. Keller and T. T. Takahashi
Representation of Temporal Features of Complex Sounds by the Discharge Patterns of Neurons in the Owl's Inferior Colliculus
J Neurophysiol,
November 1, 2000;
84(5):
2638 - 2650.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. L. Pena and M. Konishi
Cellular mechanisms for resolving phase ambiguity in the owl's inferior colliculus
PNAS,
October 24, 2000;
97(22):
11787 - 11792.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
E. I. Knudsen, W. Zheng, and W. M. DeBello
Traces of learning in the auditory localization pathway
PNAS,
October 24, 2000;
97(22):
11815 - 11820.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. I. Gold and E. I. Knudsen
A Site of Auditory Experience-Dependent Plasticity in the Neural Representation of Auditory Space in the Barn Owl's Inferior Colliculus
J. Neurosci.,
May 1, 2000;
20(9):
3469 - 3486.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. I. Gold and E. I. Knudsen
Abnormal Auditory Experience Induces Frequency-Specific Adjustments in Unit Tuning for Binaural Localization Cues in the Optic Tectum of Juvenile Owls
J. Neurosci.,
January 15, 2000;
20(2):
862 - 877.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
M. W. Oram, M. C. Wiener, R. Lestienne, and B. J. Richmond
Stochastic Nature of Precisely Timed Spike Patterns in Visual System Neuronal Responses
J Neurophysiol,
June 1, 1999;
81(6):
3021 - 3033.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
J. A. Mazer
How the owl resolves auditory coding ambiguity
PNAS,
September 1, 1998;
95(18):
10932 - 10937.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
D. Kautz and H. Wagner
GABAergic Inhibition Influences Auditory Motion-Direction Sensitivity in Barn Owls
J Neurophysiol,
July 1, 1998;
80(1):
172 - 185.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
K. Saberi, H. Farahbod, and M. Konishi
How do owls localize interaurally phase-ambiguous signals?
PNAS,
May 26, 1998;
95(11):
6465 - 6468.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
Y. E. Cohen and E. I. Knudsen
Representation of Binaural Spatial Cues in Field L of the Barn Owl Forebrain
J Neurophysiol,
February 1, 1998;
79(2):
879 - 890.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
|
|
|
L. Proctor and M. Konishi
Representation of sound localization cues in the auditory thalamus of the barn owl
PNAS,
September 16, 1997;
94(19):
10421 - 10425.
[Abstract]
[Full Text]
[PDF]
|
|
|
|
