2*B* | Two-tailed *t* test | S1 vs. V1: num sessions to learn | 0.0032 | 1.6259 |

2*E* | Two-tailed *t* test | S1 vs. V1: num trials to learn | 0.0047 | 1.6048 |

2*F* | ANOVA | V1: percent correct (PC) vs. difficulty | 0.0015 | 0.9904 |

2*F* | Two-way ANOVA | Factor 1 (angle): mean PC | 0.0003 | 0.4261 |

2*F* | Two-way ANOVA | Factor 2 (implant location): mean PC | 0.6186 | 0.043 |

2*F* | Two-way ANOVA | Interaction (angle × location): mean PC | 0.5024 | 0.1336 |

2*G* | Two-tailed *t* test | Naive V1 vs. pretrained S1: num sessions to learn | 0.8518 | 0.1201 |

2*G* | Two-tailed *t* test | Naive S1 vs. V1: num sessions to learn | 0.6433 | 0.4082 |

3*E* | *F* test | Stimulus location vs. receptive field peak correlation | 0.7 | 0.0259 |

4*C* | Two-tailed *t* test | S1 vs. V1: num sessions to learn integrated task | 1 | 0 |

4*D* | Two-tailed *t* test | S1 vs. V1: num trials to learn integrated task | 0.6258 | 0.4306 |

5*E* | Two-way ANOVA | Factor 1 (animal group): PC for two-width case (54/78) | 0.5485 | 0.0833 |

5*E* | Two-way ANOVA | Factor 2 (treatment): PC for two-width case | 0.0004 | 1.115 |

5*E* | Two-way ANOVA | Interaction (group × treatment): PC two widths | 0.8597 | 0.4738 |

5*E* | Two-tailed *t* test | Two-width PC change versus zero: after stimulation | 0.0136 | 1.1567 |

5*E* | Two-tailed *t* test | Two-width PC change versus zero: after clipping | 0.0014 | 2.0877 |

5*F* | Two-way ANOVA | Factor 1 (animal group): PC multiwidth (12/14 widths) | 0.9187 | 0.026 |

5*F* | Two-way ANOVA | Factor 2 (treatment): PC multiwidth | 0.0179 | 1.1543 |

5*F* | Two-way ANOVA | Interaction (group × treatment): PC multiwidth | 0.6384 | 0.1217 |

5*F* | Two-tailed *t* test | Multiwidth PC change versus zero: after stimulation | 0.153 | 0.6874 |

5*F* | Two-tailed *t* test | Multiwidth PC change versus zero: after clipping | 0.009 | 2.1161 |

5*G* | Two-way ANOVA | Factor 1 (animal group): sensitivity | 0.7111 | 0.0833 |

5*G* | Two-way ANOVA | Factor 2 (treatment): sensitivity | 0.0105 | 1.115 |

5*G* | Two-way ANOVA | Interaction (group × treatment): sensitivity | 0.0868 | 0.4738 |

5*G* | Two-tailed *t* test | Sensitivity change versus zero: group after stim | 0.0107 | 1.6174 |

5*G* | Two-tailed *t* test | Sensitivity change versus zero: group after clip | 0.3449 | 0.4786 |

6*E* | Chi-squared test | Proportion w/anticipatory response in stim vs. control | 0.009 | 0.18 |

6*E* | Chi-squared test | Proportion w/response to stim in stim vs. control | 0.053 | 0.13 |