Figure 1.

IPSCs in apical OHCs and mid-basal OHCs. Representative traces of 40 mm KCl-induced IPSCs recorded from apical (black, A) and mid-basal (gray, B) cochlear segments from P21 rats. IPSC amplitudes (C) were not significantly different between apical and mid-basal cochlear segments. IPSC rise times (D) were significantly slower in apical OHCs compared with those recorded from mid-basal OHCs. Likewise, IPSC decay times (E) were significantly slower in apical compared with those recorded in mid-basal OHCs. C–E, Dots indicate mean value for each cell within each group. Boxes mark the 25th (closest to zero) and 75th percentiles with a line between marking median value. Whiskers (error bars) above and below the box indicate 10th and 90th percentiles.