Table 2. V_0.5 increases from base to apical region of cochlea and is sensitive to the addition of XE991.

Cells and region	${\mathit{V}}_{\mathbf{0}\mathbf{.}\mathbf{5}}$(V)	OBS	P value
(a) basal	−0.062 (0.020)	4	0.0399
(a) apical	−0.035 (0.020)	11
(b) basal	−0.091 (0.022)	12	0.0003
(b) apical	−0.054 (0.023)	16
(c) basal	−0.071 (0.024)	11	0.0697
(c) apical	−0.057 (0.019)	30

(a) and (b) represent measurements with cells extracted from normal phenotype with and without XE991 in the bath, and (c) represents measurements with cells extracted from albinos. The P value of the ANOVA is shown for each group. ANOVA effect tests on cells from a normal mammalian phenotype demonstrate the significant influence of adding XE991 to the bath (P value = 0.0035). The SD of the mean is shown in parentheses, OBS, number of observations.