Slide
Centre Interdisciplinaire
de Recherche et d’Innovation
en Cybersécurité et Société
de Recherche et d’Innovation
en Cybersécurité et Société
1.
Simon, J.; Etienne, A. -M.; Bouchard, S.; Quertemont, E.
Alcohol Craving in Heavy and Occasional Alcohol Drinkers After Cue Exposure in a Virtual Environment: The Role of the Sense of Presence Journal Article
In: Frontiers in Human Neuroscience, vol. 14, 2020, ISSN: 16625161 (ISSN), (Publisher: Frontiers Media S.A.).
Abstract | Links | BibTeX | Tags: adult, alcohol withdrawal syndrome, alcoholic beverage, article, association, clinical article, controlled study, craving, cue exposure, environmental exposure, female, heavy drinking, human, immersion, male, people by drinking status, Sensation, sense of presence, social drinker, validity, virtual reality, Young Adult
@article{simon_alcohol_2020,
title = {Alcohol Craving in Heavy and Occasional Alcohol Drinkers After Cue Exposure in a Virtual Environment: The Role of the Sense of Presence},
author = {J. Simon and A. -M. Etienne and S. Bouchard and E. Quertemont},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083289867&doi=10.3389%2ffnhum.2020.00124&partnerID=40&md5=3ea6b9154dfcdcb4b4de0accc4ca0126},
doi = {10.3389/fnhum.2020.00124},
issn = {16625161 (ISSN)},
year = {2020},
date = {2020-01-01},
journal = {Frontiers in Human Neuroscience},
volume = {14},
publisher = {Frontiers Media S.A.},
abstract = {The development of new technologies, and more specifically the opportunity to immerse participants in virtual controlled environments, provides a new ecological framework for researchers to study complex behaviors. This experiment aimed to compare post-immersion craving in occasional and heavy alcohol drinkers. Twenty-two occasional drinkers and eighteen heavy drinkers were recruited and immersed in a virtual bar, including alcoholic beverages. After the exposure, heavy drinkers reported a significantly higher craving than occasional drinkers. Post-immersion alcohol craving was significantly related to the levels of perceived ecological validity of the virtual environment. Finally, a moderation analysis suggested that the levels of craving more strongly increased with perceived ecological validity in heavy drinkers than in occasional drinkers. Therefore, the perceived ecological validity was an important experimental parameter to study craving in a virtual environment. These results further suggested that virtual reality might be a useful tool for both the scientific study of alcohol addiction and the treatment of alcohol dependence and relapse. © Copyright © 2020 Simon, Etienne, Bouchard and Quertemont.},
note = {Publisher: Frontiers Media S.A.},
keywords = {adult, alcohol withdrawal syndrome, alcoholic beverage, article, association, clinical article, controlled study, craving, cue exposure, environmental exposure, female, heavy drinking, human, immersion, male, people by drinking status, Sensation, sense of presence, social drinker, validity, virtual reality, Young Adult},
pubstate = {published},
tppubtype = {article}
}
The development of new technologies, and more specifically the opportunity to immerse participants in virtual controlled environments, provides a new ecological framework for researchers to study complex behaviors. This experiment aimed to compare post-immersion craving in occasional and heavy alcohol drinkers. Twenty-two occasional drinkers and eighteen heavy drinkers were recruited and immersed in a virtual bar, including alcoholic beverages. After the exposure, heavy drinkers reported a significantly higher craving than occasional drinkers. Post-immersion alcohol craving was significantly related to the levels of perceived ecological validity of the virtual environment. Finally, a moderation analysis suggested that the levels of craving more strongly increased with perceived ecological validity in heavy drinkers than in occasional drinkers. Therefore, the perceived ecological validity was an important experimental parameter to study craving in a virtual environment. These results further suggested that virtual reality might be a useful tool for both the scientific study of alcohol addiction and the treatment of alcohol dependence and relapse. © Copyright © 2020 Simon, Etienne, Bouchard and Quertemont.
2.
Simon, J.; Etienne, A. -M.; Bouchard, S.; Quertemont, E.
Alcohol Craving in Heavy and Occasional Alcohol Drinkers After Cue Exposure in a Virtual Environment: The Role of the Sense of Presence Journal Article
In: Frontiers in Human Neuroscience, vol. 14, 2020, ISSN: 16625161 (ISSN).
Abstract | Links | BibTeX | Tags: adult, alcohol withdrawal syndrome, alcoholic beverage, article, association, clinical article, controlled study, craving, cue exposure, environmental exposure, female, heavy drinking, human, immersion, male, people by drinking status, Sensation, sense of presence, social drinker, validity, virtual reality, Young Adult
@article{simonAlcoholCravingHeavy2020,
title = {Alcohol Craving in Heavy and Occasional Alcohol Drinkers After Cue Exposure in a Virtual Environment: The Role of the Sense of Presence},
author = {J. Simon and A. -M. Etienne and S. Bouchard and E. Quertemont},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85083289867&doi=10.3389%2ffnhum.2020.00124&partnerID=40&md5=3ea6b9154dfcdcb4b4de0accc4ca0126},
doi = {10.3389/fnhum.2020.00124},
issn = {16625161 (ISSN)},
year = {2020},
date = {2020-01-01},
journal = {Frontiers in Human Neuroscience},
volume = {14},
publisher = {Frontiers Media S.A.},
abstract = {The development of new technologies, and more specifically the opportunity to immerse participants in virtual controlled environments, provides a new ecological framework for researchers to study complex behaviors. This experiment aimed to compare post-immersion craving in occasional and heavy alcohol drinkers. Twenty-two occasional drinkers and eighteen heavy drinkers were recruited and immersed in a virtual bar, including alcoholic beverages. After the exposure, heavy drinkers reported a significantly higher craving than occasional drinkers. Post-immersion alcohol craving was significantly related to the levels of perceived ecological validity of the virtual environment. Finally, a moderation analysis suggested that the levels of craving more strongly increased with perceived ecological validity in heavy drinkers than in occasional drinkers. Therefore, the perceived ecological validity was an important experimental parameter to study craving in a virtual environment. These results further suggested that virtual reality might be a useful tool for both the scientific study of alcohol addiction and the treatment of alcohol dependence and relapse. © Copyright © 2020 Simon, Etienne, Bouchard and Quertemont.},
keywords = {adult, alcohol withdrawal syndrome, alcoholic beverage, article, association, clinical article, controlled study, craving, cue exposure, environmental exposure, female, heavy drinking, human, immersion, male, people by drinking status, Sensation, sense of presence, social drinker, validity, virtual reality, Young Adult},
pubstate = {published},
tppubtype = {article}
}
The development of new technologies, and more specifically the opportunity to immerse participants in virtual controlled environments, provides a new ecological framework for researchers to study complex behaviors. This experiment aimed to compare post-immersion craving in occasional and heavy alcohol drinkers. Twenty-two occasional drinkers and eighteen heavy drinkers were recruited and immersed in a virtual bar, including alcoholic beverages. After the exposure, heavy drinkers reported a significantly higher craving than occasional drinkers. Post-immersion alcohol craving was significantly related to the levels of perceived ecological validity of the virtual environment. Finally, a moderation analysis suggested that the levels of craving more strongly increased with perceived ecological validity in heavy drinkers than in occasional drinkers. Therefore, the perceived ecological validity was an important experimental parameter to study craving in a virtual environment. These results further suggested that virtual reality might be a useful tool for both the scientific study of alcohol addiction and the treatment of alcohol dependence and relapse. © Copyright © 2020 Simon, Etienne, Bouchard and Quertemont.
3.
Saumure, C.; Plouffe-Demers, M. -P.; Estéphan, A.; Fiset, D.; Blais, C.
The use of visual information in the recognition of posed and spontaneous facial expressions Journal Article
In: Journal of Vision, vol. 18, no. 9, pp. 1–15, 2018, ISSN: 15347362, (Publisher: Association for Research in Vision and Ophthalmology Inc.).
Abstract | Links | BibTeX | Tags: association, Cues, emotion, Emotions, Facial Expression, Facial Recognition, female, happiness, human, Humans, male, Pattern Recognition, physiology, Visual, Young Adult
@article{saumure_use_2018,
title = {The use of visual information in the recognition of posed and spontaneous facial expressions},
author = {C. Saumure and M. -P. Plouffe-Demers and A. Estéphan and D. Fiset and C. Blais},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054591286&doi=10.1167%2f18.9.21&partnerID=40&md5=9d2396b70438842c089a36f6a499f734},
doi = {10.1167/18.9.21},
issn = {15347362},
year = {2018},
date = {2018-01-01},
journal = {Journal of Vision},
volume = {18},
number = {9},
pages = {1–15},
publisher = {Association for Research in Vision and Ophthalmology Inc.},
abstract = {Recognizing facial expressions is crucial for the success of social interactions, and the visual processes underlying this ability have been the subject of many studies in the field of face perception. Nevertheless, the stimuli used in the majority of these studies consist of facial expressions that were produced on request rather than spontaneously induced. In the present study, we directly compared the visual strategies underlying the recognition of posed and spontaneous expressions of happiness, disgust, surprise, and sadness. We used the Bubbles method with pictures of the same individuals spontaneously expressing an emotion or posing with an expression on request. Two key findings were obtained: Visual strategies were less systematic with spontaneous than with posed expressions, suggesting a higher heterogeneity in the useful facial cues across identities; and with spontaneous expressions, the relative reliance on the mouth and eyes areas was more evenly distributed, contrasting with the higher reliance on the mouth compared to the eyes area observed with posed expressions. © 2018 The Authors.},
note = {Publisher: Association for Research in Vision and Ophthalmology Inc.},
keywords = {association, Cues, emotion, Emotions, Facial Expression, Facial Recognition, female, happiness, human, Humans, male, Pattern Recognition, physiology, Visual, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Recognizing facial expressions is crucial for the success of social interactions, and the visual processes underlying this ability have been the subject of many studies in the field of face perception. Nevertheless, the stimuli used in the majority of these studies consist of facial expressions that were produced on request rather than spontaneously induced. In the present study, we directly compared the visual strategies underlying the recognition of posed and spontaneous expressions of happiness, disgust, surprise, and sadness. We used the Bubbles method with pictures of the same individuals spontaneously expressing an emotion or posing with an expression on request. Two key findings were obtained: Visual strategies were less systematic with spontaneous than with posed expressions, suggesting a higher heterogeneity in the useful facial cues across identities; and with spontaneous expressions, the relative reliance on the mouth and eyes areas was more evenly distributed, contrasting with the higher reliance on the mouth compared to the eyes area observed with posed expressions. © 2018 The Authors.
4.
Saumure, C.; Plouffe-Demers, M. -P.; Estéphan, A.; Fiset, D.; Blais, C.
The use of visual information in the recognition of posed and spontaneous facial expressions Journal Article
In: Journal of Vision, vol. 18, no. 9, pp. 1–15, 2018, ISSN: 15347362.
Abstract | Links | BibTeX | Tags: association, Cues, emotion, Emotions, Facial Expression, Facial Recognition, female, happiness, human, Humans, male, Pattern Recognition, physiology, Visual, Young Adult
@article{saumureUseVisualInformation2018,
title = {The use of visual information in the recognition of posed and spontaneous facial expressions},
author = {C. Saumure and M. -P. Plouffe-Demers and A. Estéphan and D. Fiset and C. Blais},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85054591286&doi=10.1167%2f18.9.21&partnerID=40&md5=9d2396b70438842c089a36f6a499f734},
doi = {10.1167/18.9.21},
issn = {15347362},
year = {2018},
date = {2018-01-01},
journal = {Journal of Vision},
volume = {18},
number = {9},
pages = {1–15},
publisher = {Association for Research in Vision and Ophthalmology Inc.},
abstract = {Recognizing facial expressions is crucial for the success of social interactions, and the visual processes underlying this ability have been the subject of many studies in the field of face perception. Nevertheless, the stimuli used in the majority of these studies consist of facial expressions that were produced on request rather than spontaneously induced. In the present study, we directly compared the visual strategies underlying the recognition of posed and spontaneous expressions of happiness, disgust, surprise, and sadness. We used the Bubbles method with pictures of the same individuals spontaneously expressing an emotion or posing with an expression on request. Two key findings were obtained: Visual strategies were less systematic with spontaneous than with posed expressions, suggesting a higher heterogeneity in the useful facial cues across identities; and with spontaneous expressions, the relative reliance on the mouth and eyes areas was more evenly distributed, contrasting with the higher reliance on the mouth compared to the eyes area observed with posed expressions. © 2018 The Authors.},
keywords = {association, Cues, emotion, Emotions, Facial Expression, Facial Recognition, female, happiness, human, Humans, male, Pattern Recognition, physiology, Visual, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Recognizing facial expressions is crucial for the success of social interactions, and the visual processes underlying this ability have been the subject of many studies in the field of face perception. Nevertheless, the stimuli used in the majority of these studies consist of facial expressions that were produced on request rather than spontaneously induced. In the present study, we directly compared the visual strategies underlying the recognition of posed and spontaneous expressions of happiness, disgust, surprise, and sadness. We used the Bubbles method with pictures of the same individuals spontaneously expressing an emotion or posing with an expression on request. Two key findings were obtained: Visual strategies were less systematic with spontaneous than with posed expressions, suggesting a higher heterogeneity in the useful facial cues across identities; and with spontaneous expressions, the relative reliance on the mouth and eyes areas was more evenly distributed, contrasting with the higher reliance on the mouth compared to the eyes area observed with posed expressions. © 2018 The Authors.
5.
Royer, J.; Blais, C.; Barnabé-Lortie, V.; Carré, M.; Leclerc, J.; Fiset, D.
Efficient visual information for unfamiliar face matching despite viewpoint variations: It's not in the eyes! Journal Article
In: Vision Research, vol. 123, pp. 33–40, 2016, ISSN: 00426989 (ISSN), (Publisher: Elsevier Ltd).
Abstract | Links | BibTeX | Tags: accuracy, adult, article, association, attention, Bubbles, Evoked Potentials, eye fixation, Face, face profile, face recognition, Facial Recognition, facies, female, Fixation, human, human experiment, Humans, Image analysis, Individual differences, male, Ocular, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, Psychophysics, recognition, Recognition (Psychology), regression analysis, task performance, unfamiliar face matching, viewpoint variation, Viewpoint variations, Visual, visual discrimination, visual evoked potential, visual information, visual memory, visual stimulation, visual system parameters, Young Adult
@article{royer_efficient_2016,
title = {Efficient visual information for unfamiliar face matching despite viewpoint variations: It's not in the eyes!},
author = {J. Royer and C. Blais and V. Barnabé-Lortie and M. Carré and J. Leclerc and D. Fiset},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84968779426&doi=10.1016%2fj.visres.2016.04.004&partnerID=40&md5=4c63f6eea279f7322c9af23ae9ed22c1},
doi = {10.1016/j.visres.2016.04.004},
issn = {00426989 (ISSN)},
year = {2016},
date = {2016-01-01},
journal = {Vision Research},
volume = {123},
pages = {33–40},
publisher = {Elsevier Ltd},
abstract = {Faces are encountered in highly diverse angles in real-world settings. Despite this considerable diversity, most individuals are able to easily recognize familiar faces. The vast majority of studies in the field of face recognition have nonetheless focused almost exclusively on frontal views of faces. Indeed, a number of authors have investigated the diagnostic facial features for the recognition of frontal views of faces previously encoded in this same view. However, the nature of the information useful for identity matching when the encoded face and test face differ in viewing angle remains mostly unexplored. The present study addresses this issue using individual differences and bubbles, a method that pinpoints the facial features effectively used in a visual categorization task. Our results indicate that the use of features located in the center of the face, the lower left portion of the nose area and the center of the mouth, are significantly associated with individual efficiency to generalize a face's identity across different viewpoints. However, as faces become more familiar, the reliance on this area decreases, while the diagnosticity of the eye region increases. This suggests that a certain distinction can be made between the visual mechanisms subtending viewpoint invariance and face recognition in the case of unfamiliar face identification. Our results further support the idea that the eye area may only come into play when the face stimulus is particularly familiar to the observer. © 2016 Elsevier Ltd.},
note = {Publisher: Elsevier Ltd},
keywords = {accuracy, adult, article, association, attention, Bubbles, Evoked Potentials, eye fixation, Face, face profile, face recognition, Facial Recognition, facies, female, Fixation, human, human experiment, Humans, Image analysis, Individual differences, male, Ocular, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, Psychophysics, recognition, Recognition (Psychology), regression analysis, task performance, unfamiliar face matching, viewpoint variation, Viewpoint variations, Visual, visual discrimination, visual evoked potential, visual information, visual memory, visual stimulation, visual system parameters, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Faces are encountered in highly diverse angles in real-world settings. Despite this considerable diversity, most individuals are able to easily recognize familiar faces. The vast majority of studies in the field of face recognition have nonetheless focused almost exclusively on frontal views of faces. Indeed, a number of authors have investigated the diagnostic facial features for the recognition of frontal views of faces previously encoded in this same view. However, the nature of the information useful for identity matching when the encoded face and test face differ in viewing angle remains mostly unexplored. The present study addresses this issue using individual differences and bubbles, a method that pinpoints the facial features effectively used in a visual categorization task. Our results indicate that the use of features located in the center of the face, the lower left portion of the nose area and the center of the mouth, are significantly associated with individual efficiency to generalize a face's identity across different viewpoints. However, as faces become more familiar, the reliance on this area decreases, while the diagnosticity of the eye region increases. This suggests that a certain distinction can be made between the visual mechanisms subtending viewpoint invariance and face recognition in the case of unfamiliar face identification. Our results further support the idea that the eye area may only come into play when the face stimulus is particularly familiar to the observer. © 2016 Elsevier Ltd.
6.
Royer, J.; Blais, C.; Barnabé-Lortie, V.; Carré, M.; Leclerc, J.; Fiset, D.
Efficient visual information for unfamiliar face matching despite viewpoint variations: It's not in the eyes! Journal Article
In: Vision Research, vol. 123, pp. 33–40, 2016, ISSN: 00426989 (ISSN).
Abstract | Links | BibTeX | Tags: accuracy, adult, article, association, attention, Bubbles, Evoked Potentials, eye fixation, Face, face profile, face recognition, Facial Recognition, facies, female, Fixation, human, human experiment, Humans, Image analysis, Individual differences, male, Ocular, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, Psychophysics, recognition, Recognition (Psychology), regression analysis, task performance, unfamiliar face matching, viewpoint variation, Viewpoint variations, Visual, visual discrimination, visual evoked potential, visual information, visual memory, visual stimulation, visual system parameters, Young Adult
@article{royerEfficientVisualInformation2016,
title = {Efficient visual information for unfamiliar face matching despite viewpoint variations: It's not in the eyes!},
author = {J. Royer and C. Blais and V. Barnabé-Lortie and M. Carré and J. Leclerc and D. Fiset},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84968779426&doi=10.1016%2fj.visres.2016.04.004&partnerID=40&md5=4c63f6eea279f7322c9af23ae9ed22c1},
doi = {10.1016/j.visres.2016.04.004},
issn = {00426989 (ISSN)},
year = {2016},
date = {2016-01-01},
journal = {Vision Research},
volume = {123},
pages = {33–40},
publisher = {Elsevier Ltd},
abstract = {Faces are encountered in highly diverse angles in real-world settings. Despite this considerable diversity, most individuals are able to easily recognize familiar faces. The vast majority of studies in the field of face recognition have nonetheless focused almost exclusively on frontal views of faces. Indeed, a number of authors have investigated the diagnostic facial features for the recognition of frontal views of faces previously encoded in this same view. However, the nature of the information useful for identity matching when the encoded face and test face differ in viewing angle remains mostly unexplored. The present study addresses this issue using individual differences and bubbles, a method that pinpoints the facial features effectively used in a visual categorization task. Our results indicate that the use of features located in the center of the face, the lower left portion of the nose area and the center of the mouth, are significantly associated with individual efficiency to generalize a face's identity across different viewpoints. However, as faces become more familiar, the reliance on this area decreases, while the diagnosticity of the eye region increases. This suggests that a certain distinction can be made between the visual mechanisms subtending viewpoint invariance and face recognition in the case of unfamiliar face identification. Our results further support the idea that the eye area may only come into play when the face stimulus is particularly familiar to the observer. © 2016 Elsevier Ltd.},
keywords = {accuracy, adult, article, association, attention, Bubbles, Evoked Potentials, eye fixation, Face, face profile, face recognition, Facial Recognition, facies, female, Fixation, human, human experiment, Humans, Image analysis, Individual differences, male, Ocular, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, Psychophysics, recognition, Recognition (Psychology), regression analysis, task performance, unfamiliar face matching, viewpoint variation, Viewpoint variations, Visual, visual discrimination, visual evoked potential, visual information, visual memory, visual stimulation, visual system parameters, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Faces are encountered in highly diverse angles in real-world settings. Despite this considerable diversity, most individuals are able to easily recognize familiar faces. The vast majority of studies in the field of face recognition have nonetheless focused almost exclusively on frontal views of faces. Indeed, a number of authors have investigated the diagnostic facial features for the recognition of frontal views of faces previously encoded in this same view. However, the nature of the information useful for identity matching when the encoded face and test face differ in viewing angle remains mostly unexplored. The present study addresses this issue using individual differences and bubbles, a method that pinpoints the facial features effectively used in a visual categorization task. Our results indicate that the use of features located in the center of the face, the lower left portion of the nose area and the center of the mouth, are significantly associated with individual efficiency to generalize a face's identity across different viewpoints. However, as faces become more familiar, the reliance on this area decreases, while the diagnosticity of the eye region increases. This suggests that a certain distinction can be made between the visual mechanisms subtending viewpoint invariance and face recognition in the case of unfamiliar face identification. Our results further support the idea that the eye area may only come into play when the face stimulus is particularly familiar to the observer. © 2016 Elsevier Ltd.
7.
Roy, C.; Blais, C.; Fiset, D.; Rainville, P.; Gosselin, F.
Efficient information for recognizing pain in facial expressions Journal Article
In: European Journal of Pain (United Kingdom), vol. 19, no. 6, pp. 852–860, 2015, ISSN: 10903801 (ISSN).
Abstract | Links | BibTeX | Tags: anger, article, association, Classification, Cues, disgust, emotion, Emotions, Facial Expression, Fear, female, happiness, human, human experiment, Humans, male, nociception, normal human, Pain, pain assessment, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, random sample, reproducibility, Reproducibility of Results, sadness, statistical significance, Visual, visual information, visual stimulation
@article{roy_efficient_2015,
title = {Efficient information for recognizing pain in facial expressions},
author = {C. Roy and C. Blais and D. Fiset and P. Rainville and F. Gosselin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929122739&doi=10.1002%2fejp.676&partnerID=40&md5=027f6da7b6d5c98c86de6a07766fb83d},
doi = {10.1002/ejp.676},
issn = {10903801 (ISSN)},
year = {2015},
date = {2015-01-01},
journal = {European Journal of Pain (United Kingdom)},
volume = {19},
number = {6},
pages = {852–860},
abstract = {Background The face as a visual stimulus is a reliable source of information for judging the pain experienced by others. Until now, most studies investigating the facial expression of pain have used a descriptive method (i.e. Facial Action Coding System). However, the facial features that are relevant for the observer in the identification of the expression of pain remain largely unknown despite the strong medical impact that misjudging pain can have on patients' well-being. Methods Here, we investigated this question by applying the Bubbles method. Fifty healthy volunteers were asked to categorize facial expressions (the six basic emotions, pain and neutrality) displayed in stimuli obtained from a previously validated set and presented for 500 ms each. To determine the critical areas of the face used in this categorization task, the faces were partly masked based on random sampling of regions of the stimuli at different spatial frequency ranges. Results Results show that accurate pain discrimination relies mostly on the frown lines and the mouth. Finally, an ideal observer analysis indicated that the use of the frown lines in human observers could not be attributed to the objective 'informativeness' of this area. Conclusions Based on a recent study suggesting that this area codes for the affective dimension of pain, we propose that the visual system has evolved to focus primarily on the facial cues that signal the aversiveness of pain, consistent with the social role of facial expressions in the communication of potential threats. © 2015 European Pain Federation-EFIC®.},
keywords = {anger, article, association, Classification, Cues, disgust, emotion, Emotions, Facial Expression, Fear, female, happiness, human, human experiment, Humans, male, nociception, normal human, Pain, pain assessment, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, random sample, reproducibility, Reproducibility of Results, sadness, statistical significance, Visual, visual information, visual stimulation},
pubstate = {published},
tppubtype = {article}
}
Background The face as a visual stimulus is a reliable source of information for judging the pain experienced by others. Until now, most studies investigating the facial expression of pain have used a descriptive method (i.e. Facial Action Coding System). However, the facial features that are relevant for the observer in the identification of the expression of pain remain largely unknown despite the strong medical impact that misjudging pain can have on patients' well-being. Methods Here, we investigated this question by applying the Bubbles method. Fifty healthy volunteers were asked to categorize facial expressions (the six basic emotions, pain and neutrality) displayed in stimuli obtained from a previously validated set and presented for 500 ms each. To determine the critical areas of the face used in this categorization task, the faces were partly masked based on random sampling of regions of the stimuli at different spatial frequency ranges. Results Results show that accurate pain discrimination relies mostly on the frown lines and the mouth. Finally, an ideal observer analysis indicated that the use of the frown lines in human observers could not be attributed to the objective 'informativeness' of this area. Conclusions Based on a recent study suggesting that this area codes for the affective dimension of pain, we propose that the visual system has evolved to focus primarily on the facial cues that signal the aversiveness of pain, consistent with the social role of facial expressions in the communication of potential threats. © 2015 European Pain Federation-EFIC®.
8.
Roy, C.; Blais, C.; Fiset, D.; Rainville, P.; Gosselin, F.
Efficient information for recognizing pain in facial expressions Journal Article
In: European Journal of Pain (United Kingdom), vol. 19, no. 6, pp. 852–860, 2015, ISSN: 10903801 (ISSN).
Abstract | Links | BibTeX | Tags: anger, article, association, Classification, Cues, disgust, emotion, Emotions, Facial Expression, Fear, female, happiness, human, human experiment, Humans, male, nociception, normal human, Pain, pain assessment, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, random sample, reproducibility, Reproducibility of Results, sadness, statistical significance, Visual, visual information, visual stimulation
@article{royEfficientInformationRecognizing2015,
title = {Efficient information for recognizing pain in facial expressions},
author = {C. Roy and C. Blais and D. Fiset and P. Rainville and F. Gosselin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929122739&doi=10.1002%2fejp.676&partnerID=40&md5=027f6da7b6d5c98c86de6a07766fb83d},
doi = {10.1002/ejp.676},
issn = {10903801 (ISSN)},
year = {2015},
date = {2015-01-01},
journal = {European Journal of Pain (United Kingdom)},
volume = {19},
number = {6},
pages = {852–860},
abstract = {Background The face as a visual stimulus is a reliable source of information for judging the pain experienced by others. Until now, most studies investigating the facial expression of pain have used a descriptive method (i.e. Facial Action Coding System). However, the facial features that are relevant for the observer in the identification of the expression of pain remain largely unknown despite the strong medical impact that misjudging pain can have on patients' well-being. Methods Here, we investigated this question by applying the Bubbles method. Fifty healthy volunteers were asked to categorize facial expressions (the six basic emotions, pain and neutrality) displayed in stimuli obtained from a previously validated set and presented for 500 ms each. To determine the critical areas of the face used in this categorization task, the faces were partly masked based on random sampling of regions of the stimuli at different spatial frequency ranges. Results Results show that accurate pain discrimination relies mostly on the frown lines and the mouth. Finally, an ideal observer analysis indicated that the use of the frown lines in human observers could not be attributed to the objective 'informativeness' of this area. Conclusions Based on a recent study suggesting that this area codes for the affective dimension of pain, we propose that the visual system has evolved to focus primarily on the facial cues that signal the aversiveness of pain, consistent with the social role of facial expressions in the communication of potential threats. © 2015 European Pain Federation-EFIC®.},
keywords = {anger, article, association, Classification, Cues, disgust, emotion, Emotions, Facial Expression, Fear, female, happiness, human, human experiment, Humans, male, nociception, normal human, Pain, pain assessment, Pattern Recognition, Photic Stimulation, photostimulation, physiology, priority journal, procedures, random sample, reproducibility, Reproducibility of Results, sadness, statistical significance, Visual, visual information, visual stimulation},
pubstate = {published},
tppubtype = {article}
}
Background The face as a visual stimulus is a reliable source of information for judging the pain experienced by others. Until now, most studies investigating the facial expression of pain have used a descriptive method (i.e. Facial Action Coding System). However, the facial features that are relevant for the observer in the identification of the expression of pain remain largely unknown despite the strong medical impact that misjudging pain can have on patients' well-being. Methods Here, we investigated this question by applying the Bubbles method. Fifty healthy volunteers were asked to categorize facial expressions (the six basic emotions, pain and neutrality) displayed in stimuli obtained from a previously validated set and presented for 500 ms each. To determine the critical areas of the face used in this categorization task, the faces were partly masked based on random sampling of regions of the stimuli at different spatial frequency ranges. Results Results show that accurate pain discrimination relies mostly on the frown lines and the mouth. Finally, an ideal observer analysis indicated that the use of the frown lines in human observers could not be attributed to the objective 'informativeness' of this area. Conclusions Based on a recent study suggesting that this area codes for the affective dimension of pain, we propose that the visual system has evolved to focus primarily on the facial cues that signal the aversiveness of pain, consistent with the social role of facial expressions in the communication of potential threats. © 2015 European Pain Federation-EFIC®.
9.
Blais, C.; Roy, C.; Fiset, D.; Arguin, M.; Gosselin, F.
The eyes are not the window to basic emotions Journal Article
In: Neuropsychologia, vol. 50, no. 12, pp. 2830–2838, 2012, ISSN: 00283932.
Abstract | Links | BibTeX | Tags: adult, analytic method, article, association, association cortex, cognition, Cues, Discrimination (Psychology), discriminative stimulus, dynamic stimulus, emotion, Emotions, Eye, Facial Expression, female, Fixation, human, human experiment, Humans, male, Mouth, normal human, Ocular, Pattern Recognition, Photic Stimulation, static stimulus, task performance, Visual, visual discrimination, visual information, visual memory, visual system function, Young Adult
@article{blais_eyes_2012,
title = {The eyes are not the window to basic emotions},
author = {C. Blais and C. Roy and D. Fiset and M. Arguin and F. Gosselin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865829171&doi=10.1016%2fj.neuropsychologia.2012.08.010&partnerID=40&md5=8a46d347f96ea9bd94bd161b6f1e8b92},
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year = {2012},
date = {2012-01-01},
journal = {Neuropsychologia},
volume = {50},
number = {12},
pages = {2830–2838},
abstract = {Facial expressions are one of the most important ways to communicate our emotional state. In popular culture and in the scientific literature on face processing, the eye area is often conceived as a very important - if not the most important - cue for the recognition of facial expressions. In support of this, an underutilization of the eye area is often observed in clinical populations with a deficit in the recognition of facial expressions of emotions. Here, we used the Bubbles technique to verify which facial cue is the most important when it comes to discriminating between eight static and dynamic facial expressions (i.e., six basic emotions, pain and a neutral expression). We found that the mouth area is the most important cue for both static and dynamic facial expressions. We conducted an ideal observer analysis on the static expressions and determined that the mouth area is the most informative. However, we found an underutilization of the eye area by human participants in comparison to the ideal observer. We then demonstrated that the mouth area contains the most discriminative motions across expressions. We propose that the greater utilization of the mouth area by the human participants might come from remnants of the strategy the brain has developed with dynamic stimuli, and/or from a strategy whereby the most informative area is prioritized due to the limited capacity of the visuo-cognitive system. © 2012 Elsevier Ltd.},
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Facial expressions are one of the most important ways to communicate our emotional state. In popular culture and in the scientific literature on face processing, the eye area is often conceived as a very important - if not the most important - cue for the recognition of facial expressions. In support of this, an underutilization of the eye area is often observed in clinical populations with a deficit in the recognition of facial expressions of emotions. Here, we used the Bubbles technique to verify which facial cue is the most important when it comes to discriminating between eight static and dynamic facial expressions (i.e., six basic emotions, pain and a neutral expression). We found that the mouth area is the most important cue for both static and dynamic facial expressions. We conducted an ideal observer analysis on the static expressions and determined that the mouth area is the most informative. However, we found an underutilization of the eye area by human participants in comparison to the ideal observer. We then demonstrated that the mouth area contains the most discriminative motions across expressions. We propose that the greater utilization of the mouth area by the human participants might come from remnants of the strategy the brain has developed with dynamic stimuli, and/or from a strategy whereby the most informative area is prioritized due to the limited capacity of the visuo-cognitive system. © 2012 Elsevier Ltd.
10.
Blais, C.; Roy, C.; Fiset, D.; Arguin, M.; Gosselin, F.
The eyes are not the window to basic emotions Journal Article
In: Neuropsychologia, vol. 50, no. 12, pp. 2830–2838, 2012, ISSN: 00283932.
Abstract | Links | BibTeX | Tags: adult, analytic method, article, association, association cortex, cognition, Cues, Discrimination (Psychology), discriminative stimulus, dynamic stimulus, emotion, Emotions, Eye, Facial Expression, female, Fixation, human, human experiment, Humans, male, Mouth, normal human, Ocular, Pattern Recognition, Photic Stimulation, static stimulus, task performance, Visual, visual discrimination, visual information, visual memory, visual system function, Young Adult
@article{blaisEyesAreNot2012,
title = {The eyes are not the window to basic emotions},
author = {C. Blais and C. Roy and D. Fiset and M. Arguin and F. Gosselin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84865829171&doi=10.1016%2fj.neuropsychologia.2012.08.010&partnerID=40&md5=8a46d347f96ea9bd94bd161b6f1e8b92},
doi = {10.1016/j.neuropsychologia.2012.08.010},
issn = {00283932},
year = {2012},
date = {2012-01-01},
journal = {Neuropsychologia},
volume = {50},
number = {12},
pages = {2830–2838},
abstract = {Facial expressions are one of the most important ways to communicate our emotional state. In popular culture and in the scientific literature on face processing, the eye area is often conceived as a very important - if not the most important - cue for the recognition of facial expressions. In support of this, an underutilization of the eye area is often observed in clinical populations with a deficit in the recognition of facial expressions of emotions. Here, we used the Bubbles technique to verify which facial cue is the most important when it comes to discriminating between eight static and dynamic facial expressions (i.e., six basic emotions, pain and a neutral expression). We found that the mouth area is the most important cue for both static and dynamic facial expressions. We conducted an ideal observer analysis on the static expressions and determined that the mouth area is the most informative. However, we found an underutilization of the eye area by human participants in comparison to the ideal observer. We then demonstrated that the mouth area contains the most discriminative motions across expressions. We propose that the greater utilization of the mouth area by the human participants might come from remnants of the strategy the brain has developed with dynamic stimuli, and/or from a strategy whereby the most informative area is prioritized due to the limited capacity of the visuo-cognitive system. © 2012 Elsevier Ltd.},
keywords = {adult, analytic method, article, association, association cortex, cognition, Cues, Discrimination (Psychology), discriminative stimulus, dynamic stimulus, emotion, Emotions, Eye, Facial Expression, female, Fixation, human, human experiment, Humans, male, Mouth, normal human, Ocular, Pattern Recognition, Photic Stimulation, static stimulus, task performance, Visual, visual discrimination, visual information, visual memory, visual system function, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Facial expressions are one of the most important ways to communicate our emotional state. In popular culture and in the scientific literature on face processing, the eye area is often conceived as a very important - if not the most important - cue for the recognition of facial expressions. In support of this, an underutilization of the eye area is often observed in clinical populations with a deficit in the recognition of facial expressions of emotions. Here, we used the Bubbles technique to verify which facial cue is the most important when it comes to discriminating between eight static and dynamic facial expressions (i.e., six basic emotions, pain and a neutral expression). We found that the mouth area is the most important cue for both static and dynamic facial expressions. We conducted an ideal observer analysis on the static expressions and determined that the mouth area is the most informative. However, we found an underutilization of the eye area by human participants in comparison to the ideal observer. We then demonstrated that the mouth area contains the most discriminative motions across expressions. We propose that the greater utilization of the mouth area by the human participants might come from remnants of the strategy the brain has developed with dynamic stimuli, and/or from a strategy whereby the most informative area is prioritized due to the limited capacity of the visuo-cognitive system. © 2012 Elsevier Ltd.