5.3. “Between-channel interactions” Mode

5.3.1. Purpose #

Visualization of the relationship between two channels within a selected frequency band.

5.3.2. Controls #

1. Trim: Remove artifact segments
2. CAR: Common average reference
3. Denoise: Blink artifact suppression
4. Filter: Frequency filter selection
5. Amplitude/Power: Amplitude or power
6. Epoch length: Epoch length
7. Mode selection: Power by sections / Between-channel interactions
8. Recalculation button
9. Electrode Y: Channel for the Y-axis
10. Electrode X: Channel for the X-axis

5.3.3. Calculation Method #

• Transformations and filtering are applied to each channel.
• The signal is converted to amplitude or power.
• Epoch averaging is applied.
• For each section, a scatter plot is built:
  plot(X_channel, Y_channel)

5.3.4. Interpretation #

• Linear relationship: high correlation between channels
• Clusters: different sections may form separate clusters
• Cloud shape: reflects the type of interaction (synchronous, asynchronous, delayed)