Table 2.

Spearman correlations between delta values of muscle activity (% of MVC) and mood ratings (affect grid).

Variable	n	M	SD	1	2	3	4	5	6
1. Muscle activity positive emotion	31	0.26	1.01	–
2. Muscle activity negative emotion	31	−0.30	3.25	−0.16	–
3. Valence ratings positive emotion	31	0.52	1.29	0.22	0.04	–
4. Valence ratings negative emotion	31	−2.39	1.38	−0.00	−0.32	−0.30	–
5. Arousal ratings positive emotion	31	0.00	2.37	−0.06	−0.04	0.05	−0.03	–
6. Arousal ratings negative emotion	31	−0.77	1.78	−0.00	−0.26	0.04	0.01	0.61**	–

^**p < 0.01.