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7. “Emotional State” Interface

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7.1. Purpose

Last Updated: 21.03.2026

This interface is used to analyze emotional state based on EEG signals. It uses the Valence–Arousal model.

7.2. Interface Structure

Last Updated: 21.03.2026

The interface is divided into two panels:

7.3. Controls

Last Updated: 21.03.2026

7.3.1. Signal Processing

7.4. Emotion Calculation Method

Last Updated: 21.03.2026

7.4.1. Power Computation For each electrode and frequency band: Power formula:power = 1 + log10(mean(signal_window.^2)) 7.4.2. Arousal Formula:Arousal = (Electrode1_beta + Electrode2_beta) / (Electrode1_alpha + Electrode2_alpha)...

7.5. Display

Last Updated: 21.03.2026

7.5.1. Local EMOTION Two graphs: Both graphs are synchronized in time and contain section markers. 7.5.2. Integral EMOTION Scatter plot: Emotion quadrants: Physiological explanation of the...

7.6. Section Selection

Last Updated: 21.03.2026

Checkboxes to the right of the scatter plot make it possible to include or exclude sections from the display. This is useful for comparing emotional states...