The Effects of Home-Delivered Attention Bias Modification Training on the Attention Control Ability, Severity of Anxiety, and Cardiovascular Response of Participants with Generalized Anxiety DisorderFacilities
關鍵詞 Key words : 注意力偏誤訓練 ； 廣泛性焦慮疾患 ； 注意力控制 ； 行動應用程式 ； 穿戴裝置 ； Attention bias modification ； generalized anxiety disorder ； attention control ； mobile app ； wearable device
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研究目的：在家執行之注意力偏誤操弄（home-delivered attention bias modification training, HD-ABM）可能改善廣泛性焦慮疾患（generalized anxiety disorder, GAD）的注意力控制與症狀。研究方法：本研究招募具GAD診斷之大學生，並分派至HD-ABM組（n = 15，女性11位；訓練參與者注意威脅刺激後轉而注意中性刺激）、安慰組（n = 15，女性10位；訓練程式之形式與HD-ABM組相同，但不特定訓練注意威脅或中性刺激）、與等待組（n = 14，女性9位）。前二組參與者透過注意力訓練行動應用程式（mobile application, app；加入Posner線索作業（Posner cueing task）概念以著重注意力控制訓練）完成4週訓練；再由具光體積描計圖（photoplethysmogram, PPG）感應器的運動手錶（Zoetek），記錄心血管反應。每位參與者還需要定期進行症狀、注意力偏誤程度、注意力控制功能、以及心血管反應指標的測量。研究結果：HD-ABM組參與者、安慰組參與者在訓練後期都有顯著的執行控制能力增加，自評焦慮症狀降低、與心跳速率（heart rate, HR）降低現象；而HD-ABM組參與者的憂慮程度以及訓練期間的HR也顯著降低。研究結論：本研究進一步證實HD-ABM訓練可能有助於提升GAD病患的注意力控制功能，並反映在注意力偏誤程度、症狀、與心血管反應的改善。
Objective: This study explored whether home-delivered attention bias modification training (HD-ABM) can improve the attention control and symptoms of patients with generalized anxiety disorder (GAD). Methods: University students diagnosed with GAD were assigned to one of three groups: the HD-ABM group (n = 15, 11 women), in which the participants were asked to shift their attention to neutral stimuli after they were exposed to threatening stimuli; the placebo group (n = 15; 10 women), in which no specific training targets were employed; and the waiting group (n = 14; 9 women). Participants in the HDABM and placebo groups completed a 4-week program using an attention training mobile application that incorporated a Posner cueing task to train attention control. During the program, their cardiovascular responses were recorded using a Zoetek sports watch equipped with a photoplethysmography sensor. All participants were examined regularly in terms of their symptoms, attention bias, attention control, and cardiovascular response indicators. Results: The executive control ability of the HD-ABM and placebo groups significantly improved in the later training period, and their self-reported anxiety level and heart rate were reduced. The anxiety level and heart rate of the HD-ABM group also decreased significantly during the training period. Conclusion: This study verified that HD-ABM can help patients with GAD improve their attention control, which alleviates their attention bias and symptoms and enhances their cardiovascular response.