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Example responses of CN chopper units, as in Fig. 8. Top: responses to 30-ms tone bursts at CF at 55 (A) and 60 (B) dB SPL. Bottom 3 rows show responses with FT = CF at 3 different stimulus levels expressed in dB re. CF tone threshold. A: transient chopper (Chop-T) unit, CF tone threshold = 14 dB SPL. B: sustained chopper (Chop-S) unit, CF tone threshold = 20 dB SPL.
