Slide
Centre Interdisciplinaire
de Recherche et d’Innovation
en Cybersécurité et Société
de Recherche et d’Innovation
en Cybersécurité et Société
1.
Jack, R. E.; Blais, C.; Scheepers, C.; Schyns, P. G.; Caldara, R.
Cultural Confusions Show that Facial Expressions Are Not Universal Journal Article
In: Current Biology, vol. 19, no. 18, pp. 1543–1548, 2009, ISSN: 09609822 (ISSN).
Abstract | Links | BibTeX | Tags: adult, article, confusion, Cross-Cultural Comparison, cultural anthropology, Cultural Characteristics, cultural factor, Culture, emotion, Emotions, ethnology, eye movement, Eye movements, Facial Expression, Far East, female, human, human relation, Humans, Interpersonal Relations, male, Photic Stimulation, photostimulation, recognition, Recognition (Psychology), SYSNEURO, Western World
@article{jack_cultural_2009,
title = {Cultural Confusions Show that Facial Expressions Are Not Universal},
author = {R. E. Jack and C. Blais and C. Scheepers and P. G. Schyns and R. Caldara},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-70349289081&doi=10.1016%2fj.cub.2009.07.051&partnerID=40&md5=aedea29c81d3dcc7498c634bf1044e53},
doi = {10.1016/j.cub.2009.07.051},
issn = {09609822 (ISSN)},
year = {2009},
date = {2009-01-01},
journal = {Current Biology},
volume = {19},
number = {18},
pages = {1543–1548},
abstract = {Central to all human interaction is the mutual understanding of emotions, achieved primarily by a set of biologically rooted social signals evolved for this purpose-facial expressions of emotion. Although facial expressions are widely considered to be the universal language of emotion [1-3], some negative facial expressions consistently elicit lower recognition levels among Eastern compared to Western groups (see [4] for a meta-analysis and [5, 6] for review). Here, focusing on the decoding of facial expression signals, we merge behavioral and computational analyses with novel spatiotemporal analyses of eye movements, showing that Eastern observers use a culture-specific decoding strategy that is inadequate to reliably distinguish universal facial expressions of "fear" and "disgust." Rather than distributing their fixations evenly across the face as Westerners do, Eastern observers persistently fixate the eye region. Using a model information sampler, we demonstrate that by persistently fixating the eyes, Eastern observers sample ambiguous information, thus causing significant confusion. Our results question the universality of human facial expressions of emotion, highlighting their true complexity, with critical consequences for cross-cultural communication and globalization. © 2009 Elsevier Ltd. All rights reserved.},
keywords = {adult, article, confusion, Cross-Cultural Comparison, cultural anthropology, Cultural Characteristics, cultural factor, Culture, emotion, Emotions, ethnology, eye movement, Eye movements, Facial Expression, Far East, female, human, human relation, Humans, Interpersonal Relations, male, Photic Stimulation, photostimulation, recognition, Recognition (Psychology), SYSNEURO, Western World},
pubstate = {published},
tppubtype = {article}
}
Central to all human interaction is the mutual understanding of emotions, achieved primarily by a set of biologically rooted social signals evolved for this purpose-facial expressions of emotion. Although facial expressions are widely considered to be the universal language of emotion [1-3], some negative facial expressions consistently elicit lower recognition levels among Eastern compared to Western groups (see [4] for a meta-analysis and [5, 6] for review). Here, focusing on the decoding of facial expression signals, we merge behavioral and computational analyses with novel spatiotemporal analyses of eye movements, showing that Eastern observers use a culture-specific decoding strategy that is inadequate to reliably distinguish universal facial expressions of "fear" and "disgust." Rather than distributing their fixations evenly across the face as Westerners do, Eastern observers persistently fixate the eye region. Using a model information sampler, we demonstrate that by persistently fixating the eyes, Eastern observers sample ambiguous information, thus causing significant confusion. Our results question the universality of human facial expressions of emotion, highlighting their true complexity, with critical consequences for cross-cultural communication and globalization. © 2009 Elsevier Ltd. All rights reserved.
2.
Fiset, D.; Gosselin, F.; Blais, C.; Arguin, M.
Inducing letter-by-letter dyslexia in normal readers Journal Article
In: Journal of Cognitive Neuroscience, vol. 18, no. 9, pp. 1466–1476, 2006, ISSN: 0898929X.
Abstract | Links | BibTeX | Tags: Acquired, adult, analysis of variance, article, Brain Damage, Chronic, clinical feature, confusion, Contrast Sensitivity, controlled study, Dyslexia, Functional Laterality, human, human experiment, Humans, Infarction, male, Mental Processes, parallel design, Pattern Recognition, Photic Stimulation, Posterior Cerebral Artery, priority journal, reaction time, Reading, Reference Values, spatial frequency discrimination, Visual, visual discrimination, Visual Perception, visual system, word recognition
@article{fiset_inducing_2006,
title = {Inducing letter-by-letter dyslexia in normal readers},
author = {D. Fiset and F. Gosselin and C. Blais and M. Arguin},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-33749435964&doi=10.1162%2fjocn.2006.18.9.1466&partnerID=40&md5=edc961f6e18a7de0811cbc0e7ce9be1d},
doi = {10.1162/jocn.2006.18.9.1466},
issn = {0898929X},
year = {2006},
date = {2006-01-01},
journal = {Journal of Cognitive Neuroscience},
volume = {18},
number = {9},
pages = {1466–1476},
abstract = {Letter-by-letter (LBL) dyslexia is an acquired reading disorder characterized by very slow reading and a large linear word length effect. This suggests the use of a sequential LBL strategy, in sharp contrast with the parallel letter processing used by normal subjects. Recently, we have proposed that the reading difficulty of LBL dyslexics is due to a deficit in discriminating visually similar letters based on parallel letter processing [Arguin, M., Fiset, S., & Bub, D. Sequential and parallel letter processing in letter-by-letter dyslexia. Cognitive Neuropsychology, 19, 535-555, 2002]. The visual mechanisms underlying this deficit and the LBL strategy, however, are still unknown. In this article, we propose that LBL dyslexic patients have lost the ability to use, for parallel letter processing, the optimal spatial frequency band for letter and word recognition. We claim that, instead, they rely on lower spatial frequencies for parallel processing, that these lower spatial frequencies produce confusions between visually similar letters, and that the LBL compensatory strategy allows them to extract higher spatial frequencies. The LBL strategy would thus increase the spatial resolution of the visual system, effectively resolving the issue pertaining to between-letter similarity. In Experiments 1 and 2, we succeeded in replicating the main features characterizing LBL dyslexia by having normal individuals read low-contrast, high-pass-filtered words. Experiment 3, conducted in LBL dyslexic L.H., shows that, indeed, the letter confusability effect is based on low spatial frequencies, whereas this effect was not supported by high spatial frequencies. © 2006 Massachusetts Institute of Technology.},
keywords = {Acquired, adult, analysis of variance, article, Brain Damage, Chronic, clinical feature, confusion, Contrast Sensitivity, controlled study, Dyslexia, Functional Laterality, human, human experiment, Humans, Infarction, male, Mental Processes, parallel design, Pattern Recognition, Photic Stimulation, Posterior Cerebral Artery, priority journal, reaction time, Reading, Reference Values, spatial frequency discrimination, Visual, visual discrimination, Visual Perception, visual system, word recognition},
pubstate = {published},
tppubtype = {article}
}
Letter-by-letter (LBL) dyslexia is an acquired reading disorder characterized by very slow reading and a large linear word length effect. This suggests the use of a sequential LBL strategy, in sharp contrast with the parallel letter processing used by normal subjects. Recently, we have proposed that the reading difficulty of LBL dyslexics is due to a deficit in discriminating visually similar letters based on parallel letter processing [Arguin, M., Fiset, S., & Bub, D. Sequential and parallel letter processing in letter-by-letter dyslexia. Cognitive Neuropsychology, 19, 535-555, 2002]. The visual mechanisms underlying this deficit and the LBL strategy, however, are still unknown. In this article, we propose that LBL dyslexic patients have lost the ability to use, for parallel letter processing, the optimal spatial frequency band for letter and word recognition. We claim that, instead, they rely on lower spatial frequencies for parallel processing, that these lower spatial frequencies produce confusions between visually similar letters, and that the LBL compensatory strategy allows them to extract higher spatial frequencies. The LBL strategy would thus increase the spatial resolution of the visual system, effectively resolving the issue pertaining to between-letter similarity. In Experiments 1 and 2, we succeeded in replicating the main features characterizing LBL dyslexia by having normal individuals read low-contrast, high-pass-filtered words. Experiment 3, conducted in LBL dyslexic L.H., shows that, indeed, the letter confusability effect is based on low spatial frequencies, whereas this effect was not supported by high spatial frequencies. © 2006 Massachusetts Institute of Technology.