Frequency tuning curves(FTC) High intensity response to 1 10r (b) broader Hz range 100 10 mV 5 mVA 2 mv 80 70 50F Chat racteristic -20 40F frequency 30 20 Sharp ut-off 0 -20 5102030 Frequency(kfIz) Most sensitive Variation in sound intensity level is required to keep characteristic the intracellular receptor potential (mV) of a hair cell frequency constant at different frequencies FrequencyFrequency In c r e a sin g in t e n sit y Most sensitive = characteristic frequency Sharp cut-off High intensity = response to broader Hz range Frequency tuning curves (FTC) Characteristic frequency Variation in sound intensity level is required to keep the intracellular receptor potential (mV) of a hair cell constant at different frequencies Intracellular receptor potential{