An Invisible Gorilla: Is It a Matter of Focus of Attention?

Abstract

How to evaluate users’ attention level in a video task is a challenge. One of the conventional methods is to link users’ focus of attention to their performance under-taken in a video. However, this is not always true in a video environment, as users’ poor performance may be resulted from some other reasons rather than a lack of focus of attention. In this article, we demonstrated our assumption by using an Electroen-cephalography (EEG) sensor, which measured the users’ attention level in a video task. Our results showed one case that some of the users with a poor performance in the video task had the same level of attention compared to those users with a good performance. In particular, an interference object in the video, aimed for distracting the users’ attention, had no impact on some of the users’ focus when they were al-ready involved in the video task