| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Laboratory of Auditory Neurophysiology, Medical School, K.U.Leuven, B-3000 Leuven, Belgium
Submitted 20 August 2003; accepted in final form 17 December 2003
Temporal information in the responses of auditory neurons to sustained sounds has been studied mostly with periodic stimuli, using measures that are based on Fourier analysis. Less information is available on temporal aspects of responses to nonperiodic wideband sounds. We recorded responses to a reference Gaussian noise and its polarity-inverted version in the auditory nerve of barbiturate-anesthetized cats and used shuffled autocorrelograms (SACs) to quantify spike timing. Two metrics were extracted from the central peak of autocorrelograms: the peak-height and the width at halfheight. Temporal information related to stimulus fine-structure was isolated from that to envelope by subtracting or adding responses to the reference and inverted noise. Peak-height and halfwidth generally behaved as expected from the existing body of data on phase-locking to pure tones and sinusoidally amplitude-modulated tones but showed some surprises as well. Compared with synchronization to low-frequency tones, SACs reveal large differences in temporal behavior between the different classes of nerve fibers (based on spontaneous rate) as well as a strong dependence on characteristic frequency (CF) throughout the phase-locking range. SACs also reveal a larger temporal consistency (i.e., tendency to discharge at the same point in time on repeated presentation of the same stimulus) in the responses to the stochastic noise stimulus than in the responses to periodic tones. Responses at high CFs reflect envelope phase-locking and are consistent with previous reports using sinusoidal AM. We conclude that the combined use of broadband noise and SAC analysis allow a more general characterization of temporal behavior than periodic stimuli and Fourier analysis.
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]
|
|
|
|
|
|
S. E. Street and P. B. Manis Action Potential Timing Precision in Dorsal Cochlear Nucleus Pyramidal Cells J Neurophysiol, June 1, 2007; 97(6): 4162 - 4172. [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]
|
|
|
|
|
|
A. Dreyer and B. Delgutte Phase Locking of Auditory-Nerve Fibers to the Envelopes of High-Frequency Sounds: Implications for Sound Localization J Neurophysiol, November 1, 2006; 96(5): 2327 - 2341. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y. Gai and L. H. Carney Temporal Measures and Neural Strategies for Detection of Tones in Noise Based on Responses in Anteroventral Cochlear Nucleus J Neurophysiol, November 1, 2006; 96(5): 2451 - 2464. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. van der Heijden and P. X. Joris Panoramic measurements of the apex of the cochlea. J. Neurosci., November 1, 2006; 26(44): 11462 - 11473. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. X. Joris, B. Van de Sande, D. H. Louage, and M. van der Heijden Binaural and cochlear disparities PNAS, August 22, 2006; 103(34): 12917 - 12922. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. H. G. Louage, P. X. Joris, and M. van der Heijden Decorrelation Sensitivity of Auditory Nerve and Anteroventral Cochlear Nucleus Fibers to Broadband and Narrowband Noise J. Neurosci., January 4, 2006; 26(1): 96 - 108. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. X. Joris, B. van de Sande, A. Recio-Spinoso, and M. van der Heijden Auditory Midbrain and Nerve Responses to Sinusoidal Variations in Interaural Correlation J. Neurosci., January 4, 2006; 26(1): 279 - 289. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. Cedolin and B. Delgutte Pitch of Complex Tones: Rate-Place and Interspike Interval Representations in the Auditory Nerve J Neurophysiol, July 1, 2005; 94(1): 347 - 362. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F.-G. Zeng, Y.-Y. Kong, H. J. Michalewski, and A. Starr Perceptual Consequences of Disrupted Auditory Nerve Activity J Neurophysiol, June 1, 2005; 93(6): 3050 - 3063. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. X. Joris, B. Van De Sande, and M. van der Heijden Temporal Damping in Response to Broadband Noise. I. Inferior Colliculus J Neurophysiol, April 1, 2005; 93(4): 1857 - 1870. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. H. G. Louage, M. van der Heijden, and P. X. Joris Enhanced Temporal Response Properties of Anteroventral Cochlear Nucleus Neurons to Broadband Noise J. Neurosci., February 9, 2005; 25(6): 1560 - 1570. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. C. T. Yin Buried in the Noise. Focus on "Temporal Properties of Responses to Broadband Noise in the Auditory Nerve" J Neurophysiol, May 1, 2004; 91(5): 1934 - 1935. [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |
