a | Average endpoint hand angles during last epoch of the baseline phase for all groups in experiment 1 | Two-way ANOVA | Structure_*F*_{(1,36)} = 0.60, report_*F*_{(1,36)} = 4.12, interaction_*F*_{(1,36)} = 0.20 | Structure_partial η^{2} = 0.01, *p* = 0.4441; report_partial η^{2} = 0.1, *p* = 0.0498; interaction_partial η^{2} = 0.01, *p* = 0.6579 |

b | Average endpoint hand angles for nostructure-noreport and nostructure-report groups during last epoch of the baseline phase and average endpoint hand angles for the exposure phase | Paired *t* test | Nostructure-noreport_*t*_{(9)} = -0.77 | Nostructure-noreport _CI: −0.8441/0.4141, *p* = 0.4593; nostructure-report_CI: 0.2853/2.9324, *p* = 0.0225 |

Nostructure-report_*t*_{(9)} = 2.75 |

c | Correlation coefficients for exposure phase endpoint hand angles and rotation solutions for structure-report and structure-noreport groups | Two-sample *t* test | *t*_{(18)} = 2.94 | CI: 0.0699/ |

0.4207, *p* = 0.0088 |

d | Endpoint hand angle-solution regression slopes for structure-report and structure-noreport groups | One-sample *t* test | Structure-report_*t*_{(9)} = 14.90, structure-noreport_*t*_{(9)} = 7.40 | Structure-report _CI: 0.6139/0.8336, *p* = 1.1967e-07; structure-noreport_CI: 0.3582/0.6735, *p* = 4.0938e-05 |

e | Endpoint hand angle-solution regression slopes for structure-report and structure-noreport groups | Two-sample *t* test | *t*_{(18)} = 2.45 | CI: 0.0294/0.3864, *p* = 0.0249 |

f | Aiming angle-solution regression slope for structure-report group | One-sample *t* test | *t*_{(9)} = 13.31 | CI: 0.6063/0.8546, *p* = 3.1703e-07 |

g | Implicit angle-solution regression slope for structure-report group | One-sample *t* test | *t*_{(9)} = −0.12 | CI: −0.0463/0.0418, *p* = 0.9106 |

h | Average endpoint hand angles for all groups in experiment 1 during last epoch of the feedback-washout phase | Two-way ANOVA | Structure_*F*_{(1,36)} = 5.31, report_*F*_{(1,36)} = 4.17, interaction_*F*_{(1,36)} = 6.54 | Structure_partial η^{2} = 0.13, *p* = 0.0271; report_partial η^{2} = 0.10, *p* = 0.0484; interaction_partial η^{2} = 0.15, *p* = 0.0149 |

i | Average aiming angles for structure-report and nostructure-report groups during last epoch of the feedback-washout phase | Two-sample *t* test | *t*_{(18)} = −1.41 | CI: −0.2087/1.0525, *p* = 0.1769 |

j | Average endpoint hand angles during first epoch of the test phase for all groups in experiment 1 | Two-way ANOVA | Structure_*F*_{(1,36)} = 36.28, report_*F*_{(1,36)} = 0.21, interaction_*F*_{(1,36)} = 2.38 | Structure_partial η^{2} = 0.50, *p* = 6.48e-07; report_partial η^{2} = 0.01, *p* = 0.648; interaction_partial η^{2} = 0.06, interaction_ *p* = 0.132 |

k | Average aiming angles and implicit angles during first epoch of the test phase for structure-report and nostructure-report groups | One-way MANOVA | *F*_{(1,18)} = 24.60 | Pillai’s trace = 0.74, *p* = 9.582e-06 |

l | Baseline-subtracted, average endpoint hand angles during first epoch of the no-feedback washout phase for all groups | Two-way ANOVA | Structure_*F*_{(1,36)} = 3.55, report_*F*_{(1,36)} = 0.57, interaction_*F*_{(1,36)} = 0.55 | Structure_partial η^{2} = 0.09, *p* = 0.0677; report_partial η^{2} = 0.02, *p* = 0.4541; interaction_partial η^{2} = 0.02, *p* = 0.4620 |

m | Average endpoint hand angles in experiment 2 during last epoch of the baseline phase for all groups | One-way ANOVA | *F*_{(2,39)} = 0.76 | Partial η^{2} = 0.04, *p* = 0.4764 |

n | Average endpoint hand radii in experiment 2 during last epoch of the baseline phase for all groups | One-way ANOVA | *F*_{(2,39)} = 4.44 | Partial η^{2} = 0.19, *p* = 0.0182 |

o | Average control group endpoint hand angles during last epoch of the baseline phase and exposure phase | Paired *t* test | *t*_{(13)} = 2.64 | CI: 0.2869/2.8518, *p* = 0.0203 |

p | Correlation coefficients for exposure phase reach performance and perturbation solutions for gain and rotation groups | Two-sample *t* test | *t*_{(26)} = −2.10 | CI: 0.0034/0.3221, *p* = 0.0456 |

q | Exposure phase reach-solution regression slopes for gain and rotation groups | One-sample *t* test | Gain_*t*_{(13)} = 6.88, | Gain_CI: 0.2296/0.4396, *p* = 1.1109e-05; rotation_CI: 0.3739/0.6463, *p* = 1.9788e-06 |

Rotation_*t*_{(13)} = 8.09 |

r | Exposure phase reach-solution regression slopes for gain and rotation groups | Two-sample *t* test | *t*_{(26)} = −2.20 | CI: −0.3391/−0.0119, *p* = 0.0365 |

s | Average endpoint hand angles for all groups in experiment 2 during last epoch of the feedback-washout phase | One-way ANOVA | *F*_{(2,39)} = 1.3 | Partial η^{2} = 0.06, *p* = 0.2850 |

t | Average aiming angles for all groups in experiment 2 during last epoch of the feedback-washout phase | One-way ANOVA | *F*_{(2,39)} = 5.63 | Partial η^{2} = 0.22, *p* = 0.0071 |

u | Average endpoint hand radii for all groups in experiment 2 during last epoch of the feedback-washout phase | One-way ANOVA | *F*_{(2,39)} = 0.68 | Partial η^{2} = 0.03, *p* = 0.5109 |

v | Average aiming radii for all groups in experiment 2 during last epoch of the feedback-washout phase | One-way ANOVA | *F*_{(2,39)} = 0.79 | Partial η^{2} = 0.04, *p* = 0.4608 |

w | Average endpoint hand angles for all groups during first epoch of the test phase | One-way ANOVA | *F*_{(2,39)} = 15.36 | Partial η^{2} = 0.44, *p* = 1.2049e-05 |

x | Reaching radii for all groups during first epoch of the test phase | One-way ANOVA | *F*_{(2,39)} = 0.11 | Partial η^{2} = 0.01, *p* = 0.8956 |

y | Aiming radii for all groups during first epoch of the test phase | One-way ANOVA | *F*_{(2,39)} = 0.19 | Partial η^{2} = 0.01, *p* = 0.8317 |

z | Average aiming angles for all groups during first epoch of the test phase | One-way ANOVA | *F*_{(2,39)} = 10.90 | Partial η^{2} = 0.36, *p* = 1.7326e-04 |

aa | Average implicit angles for all groups during first epoch of the test phase | One-way ANOVA | *F*_{(2,39)} = 0.99 | Partial η^{2} = 0.05, *p* = 0.3816 |

bb | Average aiming angles and average endpoint hand angles during first epoch of test phase | Paired *t* tests | Rotation_*t*_{(13)} = 0.35, | Rotation_CI:−5.0710/3.6744, *p* = 0.7356; gain_CI: −6.6180/15.0414, *p* = 0.4160; control_CI: −4.9148/1.2700, *p* = 0.2253 |

gain_*t*_{(13)} = −0.84, |

control_*t*_{(13)} = 1.27 |

cc | Average aiming angles and average endpoint hand angles during first epoch of test phase | Pearson correlations | Rotation_*r* = 0.78, | Rotation_CI: 0.4269/0.9272, rotation_*p* = 0.0010; gain_CI: 0.5874/0.9523, *p* = 0.0001; control_CI: 0.7427/0.9726, *p* = 5.0555e-06 |

gain_*r* = 0.85, |

control_*r* = 0.91 |