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  • Title: Off-channel effect of high-frequency overstimulation on duration tuning of low-frequency inferior colliculus neurons in guinea pigs.
    Author: Chen Z, Yu D, Feng Y, Su K, Wang J, Yin S.
    Journal: Acta Otolaryngol; 2009 Dec; 129(12):1451-5. PubMed ID: 19922096.
    Abstract:
    CONCLUSION: High-frequency overstimulation can cause the loss of duration selectivity in low-frequency inferior colliculus neurons in guinea pigs. OBJECTIVE: To investigate the effect of high-frequency overstimulation on duration tuning in low-frequency inferior colliculus neurons in guinea pigs. MATERIALS AND METHODS: Duration tuning pattern was recorded by measuring the spikes of single neurons in response to the best frequency (BF) of different durations. The effect of high-frequency overstimulation was verified by comparing the responses before and after the tone exposure. RESULTS: In total, 40 duration-tuned neurons were successfully recorded before and after the tone exposure. After the high-frequency tone trauma, a total of 29 neurons (72.5%) became non-duration-tuned.
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