To determine the facial features systematically correlated with modulations of the EEG signals, we applied Bubbles to single trial raw electrode amplitudes.
In this study, we assessed the relationship between CF and the surrogate markers of impedance, unipolar, and bipolar electrode amplitudes.
For tDCS these parameters involve the size of electrodes, amplitude, duration of current, online versus offline, and the time-interval between stimulation periods.
These parameters have previously been related to increased arousal and mental effort, and included: relative theta, alpha, and beta band power of frontal and parietal electrodes, amplitude and latency of parietal P300s, number and duration of skin conductance responses (SCRs), heart rate, and heart rate variance.
Between 140 180 ms and 180 240 ms the topography of the DE differed in G3 relative to G5 and adults at frontal and parietal electrodes: amplitudes was more positive frontally and more negative parietally in G3 than in other groups.
We stimulated all electrodes in random order, at various amplitudes to select a stimulation electrode and amplitude that frequently induced a network burst.
Right parietal (P4) electrode P300 amplitude for the continuous performance task and the go/no-go go condition was lower than the go/no-go no-go condition and higher than the cued target detection task.
Left parietal (P3) electrode P300 amplitude for the continuous performance task and the go/no-go go condition was lower than the go/no-go no-go condition and higher than the cued target detection task.
Fabrication error of the sectioned electrodes and amplitude difference of voltage sources would be the cause of the variance.
Electrode×trial type interactions were found for all analyzed components, reflecting generally higher sensitivity for the more anterior electrodes for amplitude differences (Figure 2B).
