This is a subjective and self-administered measure with a 10 cm line where the intensity of the emotional state is indicated. Four VAS were used to evaluate sadness, joy, anxiety, and relaxation moods. Participants were asked to rate how strongly they were experiencing each of the emotions evaluated at that moment on a 0e10 point Likert scale (0 ¼ not feeling the emotion at all, 10 ¼ feeling the emotion very strongly).