Figure 8.

Tuned regions of two cells that were dominated by IPSPs. The tuned regions of this IPSP-dominated subtype were characterized by uniform PSP patterns evoked across frequency. The widths of the tuned regions differed among cells in this subgroup, illustrated by the narrow tuning in A and the much broader tuning in B. Tone burst durations were 10 ms in A and 20 ms in B. All tones were 50 dB SPL. Records in A are averages of 10 trials, and records in B were averages of three trials. Resting potential of the cell in A was −44 mV, and the cell in B was −46 mV.