瞳孔變化量用於汽車圖片引發情緒反應之評鑑

Pupillary variation to emotional response evoked by car images

傳統感性工學研究多是以問卷擷取轉化人們的感受，相較於問卷所得到的心理主觀資料，生理數值量測則是針對受測者的感知反應，在受試者沒有察覺的情形下做記錄，也較難以刻意控制。本研究使用監測瞳孔尺寸來做為人們對於刺激物的生理反應值，並輔以問卷評量的方式，針對30張汽車圖片進行實驗。結果顯示，人們觀看三類（正向、中性、負向情緒）汽車圖片時，在觀看引發負向情緒圖片時，瞳孔變化量大於觀看正向與中性的的圖片，而觀看正向與中性的圖片時瞳孔變化量沒有顯著性的差異。也就是說，汽車能引發出人們極端負向的情緒。但對於汽車的不滿有可能會被加以放大，導致人們對於正向刺激物主觀評價得分沒有獲得高分，瞳孔變化量亦呈現較小的變化量。根據生理與心理的評價，結果支持受測者瞳孔變化與主觀評價之間有所關聯，且某些產品可以引發極端負值。

Most traditional Kansei Engineering evaluations rely on questionnaires to convert user subjective opinion to objective data. User perception is highly correlated with emotion and sensitive. People cannot easily control their physiological signals voluntarily. Therefore, this study explores the relationship between pupil size and user subjective opinion using thirty vehicle images as stimuli. The stimuli are composed of positive, negative, and neutral images.The results indicated that the measurement of pupil size couldn’t distinguish between positive and neutral emotional responses. Negative emotional responses to products were reflected stronger than the other emotional responses. On the other hand, the vehicle images can evoke extreme negative emotion. As well as if people have bad feeling about the image, the feeling will be magnified. Due to the subjective evaluation score of positive stimuli get a lower score and pupillary variations also showed a small pupillary variation. The data provide support the pupil’s response and subjective judgment during affective picture viewing have relationship.