Unit activity to click CS changes in dorsal cochlear nucleus after conditioning

Recordings were made of single unit activity (n = 360 units) from the dorsal cochlear nucleus of cats. Different patterns of activity were elicited by acoustic stimuli before and after Pavlovian conditioning. The peak response to a forward paired click conditioned stimulus (CS) increased whereas tha...

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Bibliographic Details
Published inNeuroreport Vol. 3; no. 5; p. 385
Main Authors Woody, C D, Wang, X F, Gruen, E, Landeira-Fernandez, J
Format Journal Article
LanguageEnglish
Published England 01.05.1992
Subjects
Acoustic Stimulation
Action Potentials - physiology
Animals
Blinking - physiology
Brain Stem - physiology
Cats
Conditioning, Classical - physiology
Neurons - physiology
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Summary:Recordings were made of single unit activity (n = 360 units) from the dorsal cochlear nucleus of cats. Different patterns of activity were elicited by acoustic stimuli before and after Pavlovian conditioning. The peak response to a forward paired click conditioned stimulus (CS) increased whereas that to a backward paired hiss discriminative stimulus (DS) did not. The percentage of units responding to the CS increased from 34% to 46% after conditioning. The findings do not support the widely accepted hypothesis that learning has no effect on transmission through the first brain stem relay of the auditory system and indicate, instead, that the cochlear nucleus can participate in complex adaptive acoustic signal processing.
ISSN:0959-4965
DOI:10.1097/00001756-199205000-00002