Discover Top Posts Tagged with #biofeedback as monitoring

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This paper describes the use of facial electromyography (EMG) as a measure of positive and negative emotional valence during interactive experience. Thirteen boys played a car racing video game on an Xbox platform while facial EMG data were collected. Through video review positive and negative events during play were identified. The zygomaticus muscle EMG, which controls smiling, was found to be significantly greater during positive events as compared to negative. The corrugator muscle EMG, which controls frowning, was found to be significantly greater during negative events. The results of this study demonstrate that positive valence can be measured during interactive experiences with physiologic measures. This study also found that the corrugator EMG can still measure negative valence during high intensity interactive play in spite of the confounding factor of mental effort. These methods appear useful for associating the player's emotion with game events, and could be applied to HCI in general.

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Richard L. Hazlett, Measuring emotional valence during interactive experiences: boys at video game play, Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, April 22-27, 2006, Montréal, Québec, Canada

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This paper describes an investigation into the usefulness and reliably of facial EMG as a method of monitoring user experience. To do this, the team constructed an experiment in which participants played the racing game "Juiced" while their corrugator and zygomaticus EMG data was recorded. The results show that the zygomaticus muscle EMG can indeed provide an ongoing measure of the player’s positive emotional valence, and that the corrugator EMG may also serve as practical measure of a player's emotional valence as well.

#papers #emg #valence #video games #biofeedback as monitoring #Richard L. Hazlett #testing methods #experimental design #facial emg #juiced #racing games #annotated

Abstract

Digital games offer rich media content and engaging action, accessible individually or in groups collaborating or competing against each other. This makes them promising for use as stimulus in research settings. This paper examines the advantages and challenges of using games in experimental research with particular focus on strict stimulus control through the following four areas: (1) matching and regulating task type, (2) data segmentation and event coding, (3) compatibility between participants and (4) planning and conducting data collection. This contribution provides a breakdown of the steps necessary for using a digital game in experimental studies, along with a checklist for researchers illustrating variables that potentially affect the reliability and validity of experiments. We also offer a practical study example. Ideally, the identification of the methodological and practical considerations of employing games in empirical research will also provide useful in interpreting and evaluating experimental work utilizing games as stimulus.

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Simo, J., Inger, E., Matias, K., & Niklas, R. "Digital games as experiment stimulus", Proceedings of 2012 DiGRA Nordic gaming conference, 2012 Tampere, Finland

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In an attempt to address the issues encountered in previous studies, the authors of this paper offer a number of methods through which researchers may be able use video games as an experimental stimulus in a way as to provide reliable, reproducible results. The paper addresses a number of the challenges inherent in using games as a stimulus, and how they might be addressed. Practical and methodological consideration are discussed in detail, with special attention paid to the need to control for variables such as player experience and in-game events. The team also addresses the need for researcher familiarity, and recommends those looking to use games in their research familiarize themselves with the medium, and provide a checklist of questions for guiding experimental design.