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Table 1 Variance of distance between of center of cluster (associated with 5 or 14-electrode headset) and points associated with given GCS values, \(n_{\text{ex}}\) denotes number of points used for variance calculation

From: Multifactor consciousness level assessment of participants with acquired brain injuries employing human–computer interfaces

5 electrodes, GCS (sum)5 electrodes, GCS (eyes)5 electrodes, GCS (motor)5 electrodes, GCS (verbal)
GCSVariance\(n_{\text{ex}}\)GCSVariance\(n_{\text{ex}}\)GCSVariance\(n_{\text{ex}}\)GCSVariance\(n_{\text{ex}}\)
512.860410229.2111835118.581336137.1071915
621.247592371.5071295267.4801259258.2212758
755.8221953455.4971876342.7822777365.401333
861.8481046   472.903634   
937.872841         
1079.022524         
14 electrodes, GCS (sum)14 electrodes, GCS (eyes)14 electrodes, GCS (motor)14 electrodes, GCS (verbal)
GCSVariance\(n_{\text{ex}}\)GCSVariance\(n_{\text{ex}}\)GCSVariance\(n_{\text{ex}}\)GCSVariance\(n_{\text{ex}}\)
532.239349232.239349121.061281152.0012361
621.061281353.590588251.8591088239.748639
757.0741006452.0222063360.5151313   
863.1941046   418.385318   
1018.385318         
  1. Calculations were performed for points in a 32-dimensional space of autoencoder-generated embedding vectors