Auditory intensity discrimination after selective loss of cochlear outer hair cells

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Science  12 Jun 1981:
Vol. 212, Issue 4500, pp. 1286-1288
DOI: 10.1126/science.7233219


The contributions of the inner and outer hair cells of the mammalian cochlea to auditory intensity discrimination were evaluated in a combined behavioral-anatomical study of the guinea pig. Intensity difference thresholds were unchanged from baseline values after selective destruction of outer hair cells, suggesting that those cells are unnecessary for normal intensity discrimination.