失智症在現今是一個人口逐年上升且會逐漸影響整個社會的症候群。隨著個體年齡增長和慢性疾病的影響，不僅生理功能，人類的認知能力也會逐漸衰退。輕度失智症患者雖然有顯著的語意記憶以及情結記憶之損傷，但其內隱記憶，如程序性記憶與知覺促發等能力仍是完好的。間時提取訓練為一種學習方法，藉由保留目標訊息並在遞增的時間間隔要求對象進行回想，為可用以代償因記憶損傷衍生的日常生活問題及幫助學習執行每日任務的非藥物治療。
儘管間時提取訓練有許多益處，在訓練內容的呈現仍有許多改善的空間。近年許多研究使用科技的輔助，做為幫助失智症患者連結並且治療他們的替代方案。透過互動科技即時的互動回饋，能輔助高齡者增加學習效果。因此，我們使用擴增實境這項技術提供間時提取訓練不同的呈現方式與互動模式，並針對失智症患者個人的需求進行訓練內容設計。透過場域觀察與專家訪談，了解失智症的日常生活表現，隨後透過治療師與一位輕度失智症個案的家屬取得聯繫，最後決定使用個案的服藥行為做為訓練內容設計。藉由分析擴增實境的規則，將服藥的步驟轉換成擴增實境的呈現，使個案透過視覺刺激建立關聯的記憶，達到學習目標訊息的效果。
本研究發展了一套擴增實境結合間時提取訓練的裝置，使個案透過操作擴增實境標誌來學習固定的服藥行為步驟。研究的結果已經證實能夠提升個案在日常生活中正確服藥的主動性，並獲得良好的使用性評估結果。我們期望為失智症認知訓練與擴增實境技術領域的發展帶來更多機會，給未來的研究一個有潛力的發展方向。

Dementia is a symptom of a population that is increasing year by year and will gradually affect the whole society. With the increase of individual age and the impact of chronic diseases, not only physiological functions but also human cognitive ability will decline progressively. Although patients with mild dementia have significant impairment of semantic memory and episodic memory, their implicit memory, such as procedural memory and perceptual priming, are still intact. Spaced retrieval training is a learning strategy that allows people to retain target information by the recall at increasing time intervals. It is a nonpharmacological therapy that can compensate for daily life problems caused by memory impairment and help dementia learn to perform daily tasks.
Although there are many benefits of spaced retrieval training, there is still some limitation in presenting its training content. In recent years, many studies have used technology as an alternative to assist older people with dementia. Real-time interactive feedback through interactive technology can help to improve their learning effects. Therefore, we use augmented reality to provide a different presentation and interactive modes for spaced retrieval training. The training content is designed to meet the individual needs of dementia patients. Through field observations and expert interviews, we understand the daily life performance of dementia, and then contact a family member of a mild dementia case through a therapist, and finally decide to use the case's medication behavior as the training content. By analyzing the rules of augmented reality, the steps of taking medication are transformed into augmented reality presentations. Through visual stimuli, the case can establish related memories and achieve the effect of learning target information.
This research developed a device that combines spaced retrieval training and augmented reality. It allows mild dementia to learn the fixed sequence of taking the medication by operating the augmented reality markers. The results have proved that it can improve the initiative of the case to take medicine correctly in daily life with good usability results. We expected to give future researches a potential development and have more opportunities to develop cognitive training and augmented reality for dementia.

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