Clusters for the permutation test.

<p>Channel and frequency neighbors found by running the clustering stage of the permutation test for the local spectral entropy.</p

Result of the permutation test.

<p>Mean and confidence interval of the LSE for epileptic patients group 1 and group 2 in red and blue respectively. Interval of statistical significance in black. We show zoomed windows of significant frequencies overlapping the entire spectral range at each electrode. There exists significance in all channels at <i>p</i> = 0.0086 at least in the range of frequencies [6.25–12.89)Hz.</p

5-fold cross-validation (80/20).

<p>5-fold cross-validation (80/20).</p

Results of the ROC analysis for all channels.

<p>The best channels are O1 and O2 since we want to minimize the false positive rate while having a good true positive rate.</p

Linear fit of SSE vs time elapsed (<i>log</i>₁₀) from last crisis (left) and boxplot of the SSE of healthy subjects in the band of frequencies of interest (right).

<p>The fit suggests that the SSE decreases as the time from the last crisis increases. Moreover, it should be noted that the SSE values seems to asymptotically converge in time to the levels of control subjects.</p

Classification analysis for electrodes O1 and O2.

<p>(a) Boxplot and (b) ROC curve corresponding to the classification analysis of the two groups of epileptic patients using values from channels O1 and O2. Red lines in the boxes mark the median and edges the 25th and 75th percentiles of the data.</p

Epochs automatically marked to be rejected.

<p>The picture shows (a) one epoch (in red) of the first channel of one recorded EEG signal that does not satisfy the limits for kurtosis (rejkurt) used to identify background EEG signal; and (b) two epochs of the second channel of one recorded EEG signal that probably (jointprob) do not belong to background EEG signal.</p

Classification analysis based on all significant electrodes.

<p>(a) Boxplot and (b) ROC curve corresponding to the classification analysis of the two groups of epileptic patients. Red lines in the boxes mark the median and edges the 25th and 75th percentiles of the data.</p