懷舊感虛擬實境應用於認知功能障礙者之體驗感知價值探討

Investigating the Perceived Value of Nostalgic Virtual Reality Experiences for People with Cognitive Impairment

失智症人口的增加使認知功能障礙在當前高齡化社會日漸受到重視，其中虛擬實境（virtual reality，以下簡稱VR）導入認知功能障礙者的非藥物治療是近年新興的輔助科技之一。本研究目的為探討認知功能障礙者在體驗VR後所創造的感知價值，將「多憶點」擬真VR導入認知功能障礙者的懷舊回憶體驗，以方法目的鏈之價值階層關係分析其體驗感，探究VR影響參與者重要的屬性、使用結果及價值。研究提出了懷舊感VR系統的建置設計原則，並進行VR的懷舊感體驗，透過軟式階梯法訪談13位參與者，共產生10個主要要素與37個次要要素。結果指出參與者將VR懷舊感的「系統內容」視為重要的具體「系統屬性」；在功能「結果」方面為重視「回憶」與「內容連結」；在參與者的意識中最終「價值」重視「回憶價值」、「回憶情感」與「懷舊認知」。透過方法目的鏈，本研究結果顯示參與者認為有回憶功能的內容最具價值，為懷舊體驗導入VR提供了內容設計之參考。

Dementia is a critical issue in today's ageing society. In recent years, integrating virtual reality (VR) into non-pharmacological treatments for individuals with cognitive impairments has emerged as an innovative assistive technology. This study aims to explore the perceived value created by individuals with cognitive impairments after experiencing VR. A highly realistic VR system, ''Multi-Memory'' was introduced to facilitate nostalgic memory experiences for individuals with cognitive impairments. Using the Means-End Chain approach, this study analyzed the hierarchical value relationships of their experiences, investigating the key attributes, usage outcomes, and perceived values influenced by VR. Three design principles for developing a nostalgia-based VR system were proposed, followed by an empirical nostalgic VR experience. Through soft laddering interviews with 13 individuals with cognitive impairments, 10 primary elements and 37 secondary elements were identified. The results indicate that participants considered nostalgic VR's ''system content'' as a crucial and tangible ''system attribute.'' Regarding functional ''consequence'', participants value the connection between ''memory'' and ''content.'' Ultimately, participants perceive ''memory value,'' ''emotional recollection,'' and ''nostalgic cognition'' as the most important values. Through the analysis of the Means-End Chain, this study identifies that content with memory functionality holds the highest value, providing a valuable reference for designing the content of nostalgic experiences in VR.