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Chapter 7. Experimental Validation - Agoraphobia 10 9 8 7 6 5 4 3 2 1 0 Do the characters seem friendly? User−centered Interest−centered User or Interest Random Figure 7.7: Graphical results to the assessment of character friendliness. in awareness perception in the random mode and a slight increase in the user or interest mode. This parameter however did not change throughout the different modes. It seems as though when characters look at each other and at the user randomly, users perceive that they are less aware of their environment. This may be explained by the fact that the characters seem not to be looking at the participant at all. This could equally be explained by the fact that there is no logic as to where or what the characters look at in this mode; the interest points are arbitrarily selected. Concerning the evaluation of character awareness towards other characters, the results were not what we expected. We expected the random mode to have the highest results. However, we can see in Figure 7.9 that the two which obtained the highest results were the interest-centered and the user or interest modes. It is normal for the user-centered to obtain the lowest score since the characters would only be looking at the user but not at the other characters. Those which scored highest though, were the modes in which character attention was divided between the user and other characters. Once again, the fact that there is no logic as to what the characters look at in the random mode seems to give the impression that they are not aware of one another. Finally, concerning character awareness towards the user, the user-centered mode scored slightly above the user or interest one, as depicted in Figure 7.10. We expected the usercentered mode to be clearly scored highest. The tendency however is the same as for the second question, which is in line with what we expected since both questions were alike. We have equally performed a Student’s T-test in order to verify whether there were any statistical significances between the various modes. The results are shown in Table 7.2. If we consider the 95% probability of significant difference between modes, we can see that the assessment of gaze (are the characters looking at you?) falls into this category for all 112
7.4. Results 10 9 8 7 6 5 4 3 2 1 0 Are the characters aware of their environment? User−centered Interest−centered User or Interest Random Figure 7.8: Graphical results to the assessment of character awareness towards the environment. 10 9 8 7 6 5 4 3 2 1 0 Are the characters aware of other characters? User−centered Interest−centered User or Interest Random Figure 7.9: Graphical results to the assessment of character awareness towards each other. 113
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Simulating Interactions with Virtua
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3.2.4 Scripts . . . . . . . . . . .
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7.3 Experimental Protocol . . . . .
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Résumé La Réalité Virtuelle (RV
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CHAPTER 1 Introduction 1.1 Context
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1.3. Contributions in areas of dail
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1.5. Organization of this Document
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CHAPTER 2 State of the Art 2.1 Virt
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2.1. Virtual Reality Exposure Thera
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2.2. Models of Visual Attention Fig
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2.3. Motion Editing Peters and O’
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2.3. Motion Editing Figure 2.10: Bi
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CHAPTER 3 VRET For Social Phobia Mu
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3.2. Creating Scenarios For VRET Fi
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3.3. Eye-Tracking For Interaction F
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3.4. Results can thus determine whe
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3.5. Gaze Behaviors to Enhance Char
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3.6. Discussion 3.6 Discussion Filt
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CHAPTER 4 Simulating Visual Attenti
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4.2. Walking Motion Reconstruction
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4.3. Automatic Interest Point Detec
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4.3. Automatic Interest Point Detec
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4.4. Automatic Motion Adaptation fo
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4.4. Automatic Motion Adaptation fo
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4.5. Results Figure 4.4: Illustrati
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Page 123 and 124: APPENDIX A Ethics Commission Reques
Page 125 and 126: - Cette condition persiste pendant
Page 127 and 128: laires sur un groupe de personnes s
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Page 131 and 132: APPENDIX B Fearful Situation Docume
Page 133 and 134: APPENDIX C List of Abbreviations AS
Page 135 and 136: APPENDIX D Glossary Acrophobia: acr
Page 137 and 138: List of Figures LIST OF FIGURES 2.1
Page 139 and 140: List of Figures 6.3 Results to the
Page 141 and 142: Bibliography BIBLIOGRAPHY American
Page 143 and 144: Bibliography Dassault Systèmes. ht
Page 145 and 146: Bibliography Iscan. http://www.isca
Page 147 and 148: Bibliography A. Mühlberger, M.J. W
Page 149 and 150: Bibliography B.O. Rothbaum, L.F. Ho
Page 151: WHO. The ICD-10 Classification Of M
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