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Dive into the research topics where Lotfi Derbali is active.

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Featured researches published by Lotfi Derbali.


international conference on advanced learning technologies | 2010

Prediction of Players Motivational States Using Electrophysiological Measures during Serious Game Play

Lotfi Derbali; Claude Frasson

This study investigated players’ motivation during serious game play. It is based on a theoretical model of motivation. Statistical analysis showed a significant increase of motivation during the game. This study tried to dissect predictors of Players’ Motivational States. Multiple linear regression showed statistical significance of specific electrophysiological data. The theta wave in the frontal regions and motivation were positively correlated. High-beta wave in the left-center region was also a significant predictor for high level of motivation. Skin conductance was also a significant predictor for motivation. However, we could not find a significant correlation between players’ motivation and their heart rate responses.


international conference on agents and artificial intelligence | 2014

Motivational Strategies to Support Engagement of Learners in Serious Games

Ramla Ghali; Maher Chaouachi; Lotfi Derbali; Claude Frasson

The use of Video Games as learning tool is becoming increasingly widespread. Indeed, these games are well known as educational games or serious games. They mainly aim at providing to the learner an interactive, motivational and educational environment at the same time. In order to better study the necessary characteristics for the development of an effective serious game (both motivational and educational), we evaluated the physiological responses of participants during their interaction with our serious game, called HeapMotiv. We essentially measured a physiological index of engagement through an EEG wifi headset and studied the evolution of this index with the different missions and motivational strategies of HeapMotiv. Focusing on the gaming aspects, the analysis of this engagement index behavior showed the significant impact of motivational strategies on skills acquisition and motivational experience.


intelligent tutoring systems | 2010

Players' motivation and EEG waves patterns in a serious game environment

Lotfi Derbali; Claude Frasson


artificial intelligence in education | 2009

Inducing positive emotional state in Intelligent Tutoring Systems

Soumaya Chaffar; Lotfi Derbali; Claude Frasson


Advances in Human-computer Interaction | 2012

Assessment of learners' motivation during interactions with serious games: a study of some motivational strategies in food-force

Lotfi Derbali; Claude Frasson


the florida ai research society | 2011

A Theoretical and Empirical Approach in Assessing Motivational Factors: From Serious Games To an ITS.

Lotfi Derbali; Pierre Chalfoun; Claude Frasson


artificial intelligence in education | 2011

Physiological evaluation of attention getting strategies during serious game play

Lotfi Derbali; Claude Frasson


the florida ai research society | 2013

Assessing Motivational Strategies in Serious Games Using Hidden Markov Models.

Lotfi Derbali; Ramla Ghali; Claude Frasson


artificial intelligence in education | 2011

Assessment of learners' attention while overcoming errors and obstacles: an empirical study

Lotfi Derbali; Pierre Chalfoun; Claude Frasson


E-Learn: World Conference on E-Learning in Corporate, Government, Healthcare, and Higher Education | 2009

Towards Emotional Regulation in Intelligent Tutoring Systems

Soumaya Chaffar; Lotfi Derbali; Claude Frasson

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Claude Frasson

Université de Montréal

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Ramla Ghali

Université de Montréal

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