[2L4-OS-9b] OS-9

[2L4-OS-9b-05] VR Ball Throwing System with White Lie: Does the player need support?

〇HARUKA MURAKAMI¹, Vittorio Fiscale², Agata Marta Soccini², Tetsunari Inamura¹ (1. Tamagawa University, 2. University of Torino)

Keywords:VR, motivation control, rehabilitation, white lie, frailty

In rehabilitation for the elderly, when they feel that there is a large gap between what they were able to do in the past and their current abilities in the early stages of rehabilitation, they are likely to lose heart and stop actively engaging in rehabilitation. Accordingly, this tends to create a vicious cycle that leads to further weakening of the body, and it is essential preventing fall behind in the beginning. Therefore, we created a VR ball pitching system that edits the task results and gently lies to the player, showing "not bad" or "close. To test the effectiveness of the "white lie" system, we first asked 17 healthy adult subjects to throw the ball with 50 balls in 4 groups with and without white lies. The results showed that 16 out of 17 participants enjoyed the game even if they noticed the presence of the white lie.