“…Under pleasant stimuli, such as joyful videos/images, increased COP movement was observed during the anticipatory postural adjustment phase of GI [47], [49], [50]. At the same time, an increase in the velocity of the first step [47], [50] and the step length is observed [49], [50]. Similar to happiness, anger resulted in increased COP movement, gait speed, and step length, and posterior-lateral displacement of COP.…”