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Table 2 Regularisation Parameter, MAG, RDM

From: Cortical potential imaging using L-curve and GCV method to choose the regularisation parameter

Subject Stimuli GCV L-curve MAG RDM
S1 fearful face 0.053647904825390 0.152452747854906 2.056 0.324
S1 neutral face 0.031140597094695 0.120884943960203 2.294 0.480
S1 control object 0.083040289002053 0.130773447052198 1.255 0.063
S2 fearful face 0.056017051286285 0.056846917686050 1.005 5.03e-5
S2 neutral face 0.070302890955651 0.062943521788770 0.967 2.17e-4
S2 control object 0.063992953233160 0.059812187027973 0.977 9.16e-4
S3 fearful face 0.050572034666208 0.061852135011805 1.071 0.0072
S3 neutral face 0.071407469554866 0.085678918300168 1.078 0.0084
S3 control object 0.057116631606758 0.068229559915199 1.069 0.0077
  1. Comparison between the regularisation parameters, MAG index and RDM index between the cortical potential distributions obtained using L-curve and GCV method for all the three subjects. A value of MAG close to 1 and RDM close to 0 indicates a good fit. For S2 and S3 the fit is good, where as for S1 there is appreciable deviation.