Figure 4

Confusion matrix and ROC curves. (a): ApEn values of resting anterior frontal pole to differentiate ROC curves, CFBNN fold 1 ROC curves, CFBNN fold 2 ROC curves, CFBNN fold 3 ROC curves for VS/UWS and MCS. (b): Confusion matrix distinguishing between VS/UWS and MCS for the four mentioned above. ApEn, approximate entropy; AUC, area under the curve; CFBNN, cascade forward backpropagation neural network; MCS, minimally conscious state; SON, subject’s own name; VS/UWS, vegetative state/unresponsive wakefulness syndrome.