Table 1.

Statistical analysis

FigureTestQuantities comparedP-valueEffect size
2BTwo-tailed t testS1 vs. V1: num sessions to learn0.00321.6259
2ETwo-tailed t testS1 vs. V1: num trials to learn0.00471.6048
2FANOVAV1: percent correct (PC) vs. difficulty0.00150.9904
2FTwo-way ANOVAFactor 1 (angle): mean PC0.00030.4261
2FTwo-way ANOVAFactor 2 (implant location): mean PC0.61860.043
2FTwo-way ANOVAInteraction (angle × location): mean PC0.50240.1336
2GTwo-tailed t testNaive V1 vs. pretrained S1: num sessions to learn0.85180.1201
2GTwo-tailed t testNaive S1 vs. V1: num sessions to learn0.64330.4082
3EF testStimulus location vs. receptive field peak correlation0.70.0259
4CTwo-tailed t testS1 vs. V1: num sessions to learn integrated task10
4DTwo-tailed t testS1 vs. V1: num trials to learn integrated task0.62580.4306
5ETwo-way ANOVAFactor 1 (animal group): PC for two-width case (54/78)0.54850.0833
5ETwo-way ANOVAFactor 2 (treatment): PC for two-width case0.00041.115
5ETwo-way ANOVAInteraction (group × treatment): PC two widths0.85970.4738
5ETwo-tailed t testTwo-width PC change versus zero: after stimulation0.01361.1567
5ETwo-tailed t testTwo-width PC change versus zero: after clipping0.00142.0877
5FTwo-way ANOVAFactor 1 (animal group): PC multiwidth (12/14 widths)0.91870.026
5FTwo-way ANOVAFactor 2 (treatment): PC multiwidth0.01791.1543
5FTwo-way ANOVAInteraction (group × treatment): PC multiwidth0.63840.1217
5FTwo-tailed t testMultiwidth PC change versus zero: after stimulation0.1530.6874
5FTwo-tailed t testMultiwidth PC change versus zero: after clipping0.0092.1161
5GTwo-way ANOVAFactor 1 (animal group): sensitivity0.71110.0833
5GTwo-way ANOVAFactor 2 (treatment): sensitivity0.01051.115
5GTwo-way ANOVAInteraction (group × treatment): sensitivity0.08680.4738
5GTwo-tailed t testSensitivity change versus zero: group after stim0.01071.6174
5GTwo-tailed t testSensitivity change versus zero: group after clip0.34490.4786
6EChi-squared testProportion w/anticipatory response in stim vs. control0.0090.18
6EChi-squared testProportion w/response to stim in stim vs. control0.0530.13