Table 1. RMSE and system time constant (
) for the experiments described in the main text.
| RMSE (degrees) |
 (s) |
||||
| Experiment | Mean | CI | Mean | CI | |
| 1 | Optimal | 0.129 | 0.115–0.138 | (+) 41.4 | 31.2–55.6 |
| 2 | Noisy | 2.156 | 1.693–2.699 | (+) 10.6 | 5.85–18.2 |
| 3 | Learned+Perturb1 | 0.671 | 0.312–1.178 | (+) 98.7 | 58.5–153 |
| 4 | Learned+Noise2 | 0.712 | 0.595–0.854 | (−) 31.6 | 13.5–60.1 |
| 5 | Learned+Perturb+Noise3 | 1.120 | 0.606–1.838 | (+) 41.4 | 18.9–78.8 |
| 6 | Learned+NoNoise4 | 0.183 | 0.170–0.193 | (+) 122 | 88.1–165 |
| 7 | Unstable | 0.382 | 0.364–0.395 | (−) 15.5 | 13.8–17.1 |
| 8 | Damped | 0.313 | 0.294–0.329 | (+) 10.9 | 9.19–13 |
| 9 | Lesion | 0.824 | 0.561–1.142 | (+) 30.8 | 20.2–46.2 |
| 10 | Recovery | 0.513 | 0.359–0.716 | (−) 51.3 | 25.4–88.1 |
1
After an initial disturbance (30%) to connection weights.
2
With continuous noise (10%) added to connection weights.
3
After an initial disturbance (30%) and continuous noise (5%).
4
No noise.
CI is the 95% confidence interval. Positive and negative signs indicate the direction of drift; towards and away from zero respectively.