Active probing to highlight approaching transitions to ictal states in coupled neural mass models
Fig 4
Feature series and probing efficiency for model setting I-B.
Decreased slow inhibition of population 1 is not highlighted by the extracted features if only the “normal” neural mass (set 2) is stimulated. (a) shows a simplified illustration of the model setting. For (b) variance, (c) skewness, (d) kurtosis and (e) lag-1 AC features, top rows show feature values extracted from the output of each population, as the slow inhibition gain parameter (B1) is decreased. (f) shows the inter-population synchronization as measured by the mutual information. Bottom row shows Spearman’s rank correlation between each feature series and the shifted parameter (B1), as stimulus amplitude is increased.