Latency as a function of intensity in auditory neurons: influences of central processing

@article{Klug2000LatencyAA,
  title={Latency as a function of intensity in auditory neurons: influences of central processing},
  author={Achim Klug and Asma Khan and R. Michael Burger and Eric E Bauer and Laura M. Hurley and Lichuan Yang and Benedikt Grothe and Michele B. Halvorsen and Thomas J. Park},
  journal={Hearing Research},
  year={2000},
  volume={148},
  pages={107-123}
}

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References

SHOWING 1-10 OF 74 REFERENCES
On determinants of first‐spike latency in auditory cortex
TLDR
This threshold model for auditory cortex neurones and by varying the amplitude and rise time of tonal stimuli, that this threshold model is inadequate to account for the observed latency changes, particularly when adaptive processes are taken into account is demonstrated.
Interaural Intensity Difference Processing in Auditory Midbrain Neurons: Effects of a Transient Early Inhibitory Input
TLDR
Evidence is presented that a response pattern is created within the inferior colliculus of the Free-tailed bat that is partially inhibited with very short stimuli, such as simulated bat echolocation calls that invoked only the initial, IID-sensitive component.
Latency of unit responses in cochlear nucleus determined in two different ways.
TLDR
It is concluded that the latency values of the step response represent the true sum of synaptic and axon dendritical propagation delay, whereas the latency of the responses to tone bursts also includes the temporal summation at the synaptic level.
First-spike timing of auditory-nerve fibers and comparison with auditory cortex.
TLDR
The data suggest that the basic characteristics of the latency-acceleration functions of transient onset responses seen in cortex are generated at inner hair cell-AN fiber synapses.
Auditory cortical onset responses revisited. II. Response strength.
  • P. Heil
  • Physics
    Journal of neurophysiology
  • 1997
TLDR
The present findings seriously question the usefulness of the spike count-level function and measures derived from it, such as threshold SPL, dynamic range, best SPL, or degree of nonmonotonicity.
Possible neural mechanisms of target distance coding in auditory system of the echolocating bat Myotis lucifugus.
TLDR
Analysis of responses to single FM pulses of varying amplitude revealed another novel response property, which has been termed the paradoxical latency shift, which appears to be related to the twin-peaked complex nonmonotonic response function.
Encoding timing and intensity in the ventral cochlear nucleus of the cat.
TLDR
A comparison of spontaneous firing rate and saturation firing rate of PLN units with auditory nerve fibers suggest thatPLN units receive one to four auditory nerve fiber inputs, and OC units are candidates for encoding intensity.
GABA shapes a topographic organization of response latency in the mustache bat's inferior colliculus
  • T. Park, G. Pollak
  • Biology
    The Journal of neuroscience : the official journal of the Society for Neuroscience
  • 1993
TLDR
A wide range of latencies could provide the large latency differences necessary for the coincidence detectors in the medial geniculate body tuned to signals separated by up to 20 msec.
Latency of Action Potentials in the Cochlea of Guinea Pig
The latency of the well‐synchronized whole‐nerve action potential (AP) in the cochlea of the guinea pig includes both neural and traveling‐wave delays. The latency varies with the intensity and with
...
...