Table 3.
Condition | Global stability | Triad dynamics | ||||||
---|---|---|---|---|---|---|---|---|
Input | C.V. no. of syns | C.V. weight | C.V. degree | Net change | Gained | Lost | Gain/net | |
STDP PARAMETER VARIATIONS | ||||||||
Reduced rate | RS | 0.0025 | 0.0005 | 0.0025 | 1741.53 | 13425.65 | 13406.05 | 7.7091 |
Reduced window | RS | 0.0015 | 0.0011 | 0.0015 | 1012.09 | 8032.56 | 8005.86 | 7.9366 |
Symmetric STDP | RS | 0.0024 | 0.0018 | 0.0024 | 1493.85 | 10923.51 | 10876 | 7.3123 |
Reduced rate | RA | 0.0032* | 0.0004** | 0.0032 | 2140.07 | 17159.59 | 17231.56 | 8.0182** |
Reduced window | RA | 0.0018 | 0.0011 | 0.0018 | 1431.46 | 11126.53 | 11078.49 | 7.7729** |
Symmetric STDP | RA | 0.0023 | 0.0011 | 0.0023 | 1683.24 | 14153.95 | 14066.65 | 8.4088 |
Reduced rate | IS | 0.0015 | 0.0007 | 0.0014 | 1153.92 | 9159.97 | 9161.65 | 7.9382 |
Reduced window | IS | 0.0015 | 0.0009 | 0.0015 | 950.02 | 7322.75 | 7318.39 | 7.708 |
Symmetric STDP | IS | 0.0018 | 0.0013 | 0.0018 | 1211.92 | 7569.25 | 7551.88 | 6.2457** |
Reduced rate | IA50 | 0.003 | 0.0007 | 0.003 | 2113.29 | 18946.13 | 19014.98 | 8.9652** |
Reduced window | IA50 | 0.0017 | 0.0013 | 0.0017 | 1113.53 | 10964.31 | 10984.68 | 9.8465 |
Symmetric STDP | IA50 | 0.0018 | 0.0013 | 0.0018 | 1497.17 | 13115.8 | 13133.37 | 8.7604** |
Reduced rate | IA12 | 0.0029 | 0.0009 | 0.0029** | 2181.02 | 19180.83 | 19248.15 | 8.7944 |
Reduced window | IA12 | 0.0026 | 0.0013 | 0.0026 | 1603.1 | 13929.24 | 14045.97 | 8.6889 |
Symmetric STDP | IA12 | 0.002 | 0.0013 | 0.002 | 1936.32 | 14750.08 | 14709.53 | 7.6176** |
NETWORK PARAMETER VARIATIONS | ||||||||
Reduced weight | RS | 0.0032* | 0.0033* | 0.0032* | 3374.46 | 85382.1 | 85395.51 | 25.3025* |
Asymmetric weight | RS | 0.0023 | 0.0011 | 0.0023 | 1586.63 | 13208.95 | 13283.31 | 8.3252 |
Sparse | RS | 0.0064* | 0.0035* | 0.0064* | 1940.37 | 13669.17 | 13673.95 | 7.0446** |
Stationary input | RS | 0.0016 | 0.0012 | 0.0016 | 703.93 | 3763.03 | 3730.49 | 5.3457** |
Reduced weight | RA | 0.0033* | 0.0047* | 0.0033 | 3984.73 | 141100.59 | 140983.25 | 35.4103* |
Asymmetric weight | RA | 0.0029 | 0.0018 | 0.0029 | 2241.7 | 16864 | 16826.71 | 7.5229** |
Sparse | RA | 0.0058* | 0.0038* | 0.0058* | 2254.03 | 14758.46 | 14768.49 | 6.5476** |
Stationary input | RA | 0.0015 | 0.0012 | 0.0015** | 1092.25 | 6752.48 | 6764.09 | 6.1821** |
Reduced weight | IS | 0.0092* | 0.0038* | 0.0092* | 7546.39 | 68970.17 | 68842.42 | 9.1395 |
Asymmetric weight | IS | 0.002 | 0.0014 | 0.002 | 1217.88 | 8640.75 | 8645.17 | 7.0949** |
Sparse | IS | 0.0056* | 0.0046* | 0.0056* | 1138.66 | 7937.2 | 7888.78 | 6.9706** |
Stationary input | IS | 0.0017 | 0.0012 | 0.0017 | 536.42 | 2427.78 | 2414.2 | 4.5259** |
Reduced weight | IA50 | 0.0042* | 0.0063* | 0.0042* | 4976.66 | 194756.25 | 194647.86 | 39.1339* |
Asymmetric weight | IA50 | 0.0025 | 0.0016 | 0.0025 | 2229.73 | 18842.02 | 18817.85 | 8.4504** |
Sparse | IA50 | 0.0044* | 0.004* | 0.0044* | 1835.63 | 21273.37 | 21307.92 | 11.5892 |
Stationary input | IA50 | 0.0023 | 0.0016 | 0.0023 | 1319.29 | 10783.39 | 10759.42 | 8.1736** |
Reduced weight | IA12 | 0.0038* | 0.006* | 0.0038 | 5748.78 | 169349.36 | 169372.55 | 29.4583* |
Asymmetric weight | IA12 | 0.00338* | 0.0013 | 0.0033 | 2697.68 | 18182.61 | 18186.25 | 6.7401** |
Sparse | IA12 | 0.0055* | 0.003 | 0.0055* | 1328.09 | 16124.86 | 16087.73 | 12.1414* |
Stationary input | IA12 | 0.0026 | 0.0016 | 0.0026 | 1627.37 | 12137.78 | 12154.85 | 7.4585** |
Indicates significant increase in value compared to the original simulations (t ≥ 3.25).
Indicates significant decrease in value compared to original simulations (t ≤ −3.25).
Note: Triad net change, gained, and lost are reported for comparison only and were not tested for significant differences.