a | Normal | 2-way ANOVA with Sidak posttest | Interaction: *F*_{1,11} = 8.5, *p* = 0.014; *post hoc* test: 1p vs 4p DHβE, *p* < 0.05 |

b | Normal | 2-way ANOVA | Interaction: *F*_{1,6} = 17.1, *p* = 0.006; *post hoc* test: 1p vs 4p, *p* < 0.05 |

c | Normal | 2-way ANOVA (repeated measures) | Effect of light: *F*_{1,4} = 0.19, *p* = 0.68; pre-flash × pulse number interaction, *F*_{1,4} = 0.02, *p* = 0.88 |

d | Normal | 2-way ANOVA | Effect of region: *F*_{1,18} = 8.7, *p* = 0.004; posttest, with vs without prepulse: ChIs, *p* < 0.01 |

e | Normal | 2-way ANOVA | Effect of light: *F*_{1,12} = 0.2, *p* = 0.67 |