Development of the Touch Panel Real-time Rating Method for Emotionality

Abstract

We developed a real-time rating method to track the emotionality of a stimulus using a touch panel display device. This study verified the validity and utility of this method by using International Affective Picture System (IAPS) as a criterion. The result indicated that rating value by the touch panel significantly correlates with the original score of IAPS. The response latency of the touch panel operation to the stimulus showed a similar tendency to that in the previous study that uses other user interface devices. Furthermore, we found that rating value by the touch panel needs approximately 3 seconds from the stimulus presentation to show a significant correlation with the original score of IAPS. These suggested that the real-time rating by the touch panel reflects subjective emotional content of at least still image stimulus.