Figure 2
From: Predicting affective valence using cortical hemodynamic signals
Weights assigned to the deoxyhemoglobin concentration of each channel by the linear discriminant analysis (LDA) classifier for passive elicitation decoding in positive vs. neutral (a) and negative vs. neutral (b) comparisons. Hotter colors are indicative of positive weights, while cooler colors are indicative of negative weights. Channels circled in red represent those with the highest absolute weights, while white letters indicate the corresponding subfigure that includes the block average for channels over the (c) left lateral orbitofrontal cortex (lOFC), (d) right lateral orbitofrontal cortex (lOFC), (e) dorsomedial prefrontal cortex (dmPFC), and (f) left dorsomedial prefrontal cortex (dmPFC). The continuous line represents the mean, while the shaded area represents the standard deviation, for positive (green), negative (red), and neutral (blue) affective experiences.
