- 學位論文
在虛擬實境中藉由觸覺流動進行呼吸引導
Tactile Motion for Breath Guiding in Virtual Reality
摘要
現今壓力已成為日常生活中的普遍問題，壓力可能導致失眠等健康問題。許多呼吸法可以幫助使用者放鬆並釋放壓力。在本論文中，我們用虛擬實境幫助使用者放鬆，為了能不干擾使用者享受放鬆的場景及音樂，嘗試用觸覺指令樣式引導使用者呼吸，因此設計一震動椅墊和觸覺指令樣式的設計介面。我們透過多個實驗探索要如何設計腹式呼吸及左右交替呼吸的觸覺指令樣式，並提出有關觸覺指令樣式設計的注意事項，它們對於觸覺指令樣式的設計非常重要。我們還發現腹式呼吸時吸氣的觸覺指令樣式的震動方向對於每個人來說都不一樣，且如果他們不能接受某種震動樣式，那麼比起給他們不喜歡的觸覺指令樣式，不如在該動作時不要震動比較好。因此，在進行有觸覺引導的實驗之前，我們都會為他們客製化觸覺指令樣式。接著，我們評估在不同組合的引導模式下使用者的偏好，結果顯示，有觸覺指令的組合是大多數人的首選。最後我們提出引導呼吸的系統，用虛擬實境提供放鬆的場景及音樂，一開始會有視覺、聽覺及觸覺引導，一分鐘後視覺引導會消失，再一分鐘後聽覺引導會消失，只剩下觸覺來引導呼吸，在最少干擾放鬆的音樂和場景之下引導使用者呼吸。因為這是他們第一次採用這種呼吸法，還不太熟悉，所以暫時還看不到進行這種呼吸法的效用，但SUS分數為66.7，已非常接近可接受的70分，未來仍需再做一些改進，讓觸覺回饋之呼吸引導系統更容易使用。
並列摘要
Nowadays, stress has become a common problem in everyday life. Stress may cause health problems such as insomnia. Many breathing techniques can help users relax and release stress. In this thesis, we use virtual reality to help users relax. In order not to interfere with the immersion of relaxing scene and music, we try to use tactile instruction to guide breathing, so we design a tactile chair cushion and an interface for designing tactile instruction pattern (TIP). We also conducted multiple studies to explore the TIPs that can guide users to do diaphragmatic breathing and Nadi Shodhana Pranayama. And put forward some design considerations for TIP, they are important when designing TIPs. We also found the direction of TIP for inhalation of diaphragmatic breathing is not the same for everyone, and if they cannot accept the vibration patterns, it is better not to provide vibration for that action than give the TIP that they dislike. So, we personalize the TIP for every participant before studies with tactile instruction. Next, we find the user’s preferences of multi-modal instruction, the results show the combinations with tactile instruction are preferred by most people. Finally, we proposed a breath guiding system that uses virtual reality to provide relaxing scene and music. At first, there are visual, audio, and tactile instructions. After one minute, we remove the visual instruction. After another minute, we remove the audio instruction, leaving only tactile instruction. The system can guide users breathing with less interference, and won’t affect relaxing music and scenes. Because this is the first time they use these breathing techniques, so we cannot see the effect of these breathing techniques just yet. The SUS score 66.7 is in marginal high, which is very close to acceptable, we still need some improvement to make the system easier to use.