Abstract
Guinea pigs were exposed to loud pure tones from 107 to 129dB SPL for 1 h. After varying recovery periods N1 electrocochleograms and single spiral ganglion cell recordings were obtained. The exposed cochleas were examined by scanning electron microscopy. The relationships between N1 thresholds, single neuron tuning curves and hair cell damage are described.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Action Potentials
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Animals
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Cochlea / physiopathology*
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Guinea Pigs
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Hair Cells, Auditory / ultrastructure*
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Hair Cells, Auditory, Inner / ultrastructure
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Hearing
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Hearing Loss, Noise-Induced / pathology*
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Hearing Loss, Noise-Induced / physiopathology
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Microscopy, Electron, Scanning
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Neurons / physiology
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Sensory Thresholds
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Sound / adverse effects
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Spiral Ganglion / physiopathology*