Figure 6

Effects of eye closure on electrical coupling incidence and coupling strength.
(A) The eyelids of mice were glued at P10 (total of 21 mice) and electrical coupling incidence was then studied beginning at P12. The numbers of cell pairs with detected coupling and the total number of pairs studied for each age group are listed in the table of panel (A). Mice in which the eyelids were not glued had a coupling incidence of ~42% by P21–30. Eye closure attenuated this probability to ~16% (insert panel: *P = 0.046, Fisher’s exact test). Panels (B,C) show that eye closure did not affect coupling strength. Fisher’s exact tests and two-way ANOVAs with Tukey’s post-hoc tests were used.