Measuring the Degree of Content Immersion in a Non-experimental Environment Using a Portable EEG Device
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As mobile devices such as smartphones and tablet PCs become more popular, users are becoming accustomedto consuming a massive amount of multimedia content every day without time or space limitations. From theindustry, the need for user satisfaction investigation has consequently emerged. Conventional methods toinvestigate user satisfaction usually employ user feedback surveys or interviews, which are considered manual,subjective, and inefficient. Therefore, the authors focus on a more objective method of investigating users’brainwaves to measure how much they enjoy their content. Particularly for multimedia content, it is naturalthat users will be immersed in the played content if they are satisfied with it. In this paper, the authorspropose a method of using a portable and dry electroencephalogram (EEG) sensor device to overcome thelimitations of the existing conventional methods and to further advance existing EEG-based studies. Theproposed method uses a portable EEG sensor device that has a small, dry (i.e., not wet or adhesive), andsimple sensor using a single channel, because the authors assume mobile device environments where usersconsider the features of portability and usability to be important. This paper presents how to measureattention, gauge and compute a score of user’s content immersion level after addressing some technical detailsrelated to adopting the portable EEG sensor device. Lastly, via an experiment, the authors verified ameaningful correlation between the computed scores and the actual user satisfaction scores.
Abstract
As mobile devices such as smartphones and tablet PCs become more popular, users are becoming accustomedto consuming a massive amount of multimedia content every day without time or space limitations. From theindustry, the need for user satisfaction investigation has consequently emerged. Conventional methods toinvestigate user satisfaction usually employ user feedback surveys or interviews, which are considered manual,subjective, and inefficient. Therefore, the authors focus on a more objective method of investigating users’brainwaves to measure how much they enjoy their content. Particularly for multimedia content, it is naturalthat users will be immersed in the played content if they are satisfied with it. In this paper, the authorspropose a method of using a portable and dry electroencephalogram (EEG) sensor device to overcome thelimitations of the existing conventional methods and to further advance existing EEG-based studies. Theproposed method uses a portable EEG sensor device that has a small, dry (i.e., not wet or adhesive), andsimple sensor using a single channel, because the authors assume mobile device environments where usersconsider the features of portability and usability to be important. This paper presents how to measureattention, gauge and compute a score of user’s content immersion level after addressing some technical detailsrelated to adopting the portable EEG sensor device. Lastly, via an experiment, the authors verified ameaningful correlation between the computed scores and the actual user satisfaction scores.
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