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. 2013 Apr 18;7:70. doi: 10.3389/fncir.2013.00070

Table 3.

Global stability and triad dynamics for all parameter variations.

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.