Table 4.

Estimates of percent increase in extrastriolar HCI per utricle

Time post-Tam	Extrastriolar Tom+ HCI from Figure 4, Sox2 WT	Extrastriolar Tom+ HCI from Figure 4, Sox2 CKO	Increase in Tom+ ES HCI Sox2 CKO re. WT**	Estimated % increase in ES HCI number*
1 month	64	152	88	7%
4 months	54	201	147	11%
8 months	80	250	170	13%

* Estimates of % increase were calculated as follows: we counted, on average, 1113 ES HCII (Tom– or Tom+) per WT utricle (n = 3 mice at 4 months post-Tam). Based on the ratio of HCI to HCII in ES (1.19–1.00 from Desai et al., 2005), we estimated there are 1324 ES HCI per WT utricle. We added 1324 to the number by which ES HCI increased after Sox2 CKO^** and divided by 1324 to determine the % increase.

** Difference between the second and third columns.