Fig. 1From: Subject-independent emotion recognition based on physiological signals: a three-stage decision methodValence-arousal space. EQ1: valence rating > 5 and arousal rating > 5, EQ2: valence rating > 5 and arousal rating ≤ 5, EQ3: valence rating ≤ 5 and arousal rating ≤ 5, EQ4: valence rating ≤ 5 and arousal rating > 5Back to article page