隨著自我監測健康的風潮逐漸盛行，穿戴式腦波儀是唯一可用以量測人們大腦活動與心智狀態的簡便型穿戴式裝置，除了娛樂與訓練用途的日常應用，卻少有用於自我健康管理的應用成功打入一般大眾市場。根據服務主導邏輯的觀點，產品只有在被使用的過程中方能產生其價值，稱之為使用價值，這個觀點引起了本論文的研究動機——本研究將作為未來發展穿戴式腦波儀之長期監測健康應用的參考，輔助研發、設計出更理想的未來應用。

本研究根據目前穿戴式腦波儀相關應用，歸納得知「使用情境」與「回饋功能」為兩大影響使用者使用意願的特性，並發展出四個使用穿戴式腦波儀的情境故事，並進行一份利用情境故事模擬的線上問卷，這份問卷調查了參與者願意持續使用情境故事所描寫之穿戴式腦波儀應用的意願，以及一些與個人特質或認知有關之因素的調節作用，藉以了解「使用情境」與「回饋功能」如何影響人們持續使用不同穿戴式腦波儀相關應用之意願，及可能的調節變數與其影響，我們將此問卷定位為設計流程中的早期原型測試之用。

本研究發現：一般大眾並無偏好使用特定的穿戴式腦波儀應用，但對於具備特定特徵或認知（包括：曾經使用過其他自我監測穿戴式裝置並有正面經驗、不同程度的感知健康和隱私風險）的人而言，會偏好持續使用特定應用，因此，上述三種特徵可以作為區分不同使用者族群的依據，另外根據研究發現，我們建議穿戴式腦波儀應用之研發與設計人員，未來在針對不同使用族群發展應用時，應同時將「使用情境」與「回饋功能」納入設計考量，才能更有效地發展出符合其需求之成果。

With the trend of health self-monitoring, wearable EEG (electroencephalography) is the only modality to human brain activity and mental status. Except for entertaining and training purposes, very few EEG applications penetrate the market as self-health management solutions. From the perspective of Service-dominant Logic, products have value only when being used, which is called value-in-use. The motivation of the study is to assist design process to develop desirable wearable EEG applications for long-term health monitoring.

Based on current development of wearable EEG applications, four scenarios of using wearable EEG were composed based on two dimensions of features: context and feedback generation function. Then, an online scenario-based survey was conducted and served as prototype testing in the early stage of the iterative design process. The survey examined individual person’s intention to continuously use wearable EEG applications of the four scenarios. Furthermore, it also examined the influence of several moderators related to users’ characteristics and perception.

The results show that there are no significant differences in intention to continuous use among four scenarios, in general. However, people with positive prior experiences in using other self-tracking wearables and different levels of perceived health and privacy risks developed specific preferences to different scenarios of using wearable EEG applications. The findings suggest that wearable EEG providers should take context and application function into account simultaneously when designing wearable EEG applications for specific user segments to better fit their needs.

摘要 I
Abstract II
謝誌 III
Table of Content IV
List of Table VI
List of Figure VII
Chapter 1 Introduction 1
Chapter 2 Literature Review 5
2.1 Scenario-based Design 5
2.2 Intention to Continuous Use: Information System (IS) v.s. User-oriented Design Perspectives 6
2.3 EEG Technology 8
2.4 Context and Context-aware Applications 10
2.5 Gap and Motivation 12
Chapter 3 Research Model 13
3.1 Context and Intention to Continuous Use 15
3.2 Function and Intention to Continuous Use 15
3.3 The Interaction of Context and Function toward Intention to Continuous Use 16
3.4 Prior Experience of Self-tracking Wearables 17
3.5 Personal Innovativeness 18
3.6 Self-efficacy 19
3.7 Perceived Risk 20
3.7.1 Perceived Health Risk 20
3.7.2 Perceived Privacy Risk 21
3.8 Social Influence 22
Chapter 4 Research Method 24
4.1 Experimental Design and Scenario Development 24
4.2 Measurements 26
4.3 Research Sample 28
4.4 Data Collection Procedure 29
Chapter 5 Data Analysis and Results 30
5.1 Descriptive Data Analysis 30
5.2 Validity and Reliability 31
5.3 Hypothesis Testing 33
5.3.1 The effect of Context, Function on the Intention to Use (H1 and H2) 33
5.3.2 Interaction between Context and Function on the Intention to Use (H3) 34
5.3.3 Moderating Effects 35
5.3.3.1 Prior Experience of Self-tracking Wearables (H4a-c) 36
5.3.3.2 Personal Innovativeness (H5a-c) 39
5.3.3.3 Self-efficacy (H6a-c) 39
5.3.3.4 Perceived Risk (H7a-c) 40
5.3.3.4 Social Influence (H8a-c) 44
Chapter 6 Discussion 46
6.1 Explanation of the Effects of Context and Function 46
6.2 Explanation of the Moderating Effects 48
6.3 Explanation of the Main Effects of Moderators 49
6.4 Limitation and Future Research 50
Chapter 7 Conclusion 51
References 52
Appendices 61
Appendix A. Scenarios 61
Appendix B. Questionnaire 63

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