Chapter 9: The Neural Response and the Auditory Code

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Chapter 9 The Neural Response and the Auditory
Code
This Power Point Presentation is to accompany the
textbook FUNDAMENTALS OF HEARING AN
INTRODUCTION (5th Edition) Published by Elsevier
Press and authored by William A. Yost. Please
consult the Power Point Instructions at this Web
Site before using this Presentation.
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Spontaneous Rate
Sound Source
Measuring Electrode
Spontaneous Rate 14 spikes/sec.
Sound
Neural Spikes
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Rate-Level Function
Sound Source
Measuring Electrode
Sound
Neural Spikes
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Rate-Level Function at Different Frequencies
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Response Area
At a Level of 20 dB, Plot Spike Rate
20 dB
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Tuning Curve
At a spike rate of 20 spikes/sec, plot Sound
Level in dB.
20 spikes/sec
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Post-Stimulus Time (PST) Histogram
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Inter-Spike Interval (ISI) Histogram
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Phase-Locked PST Histogram
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Two-Tone Suppression
Tone1 (Excitatory)
Tone 2 (Inhibitory)
Spike Train
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Neural Code for Two Vowels
12 mm
Distance from Stapes
32 mm