Slide
Centre Interdisciplinaire
de Recherche et d’Innovation
en Cybersécurité et Société
de Recherche et d’Innovation
en Cybersécurité et Société
1.
Estéphan, A.; Fiset, D.; Saumure, C.; Plouffe-Demers, M. -P.; Zhang, Y.; Sun, D.; Blais, C.
Time course of cultural differences in spatial frequency use for face identification Article de journal
Dans: Scientific Reports, vol. 8, no 1, 2018, ISSN: 20452322, (Publisher: Nature Publishing Group).
Résumé | Liens | BibTeX | Étiquettes: adult, article, Asian Continental Ancestry Group, attention, Canada, Caucasian, European Continental Ancestry Group, eye movement, Eye movements, Facial Recognition, female, financial management, human, human experiment, Humans, male, Pattern Recognition, physiology, stimulus, Visual, visual information, Young Adult
@article{estephan_time_2018,
title = {Time course of cultural differences in spatial frequency use for face identification},
author = {A. Estéphan and D. Fiset and C. Saumure and M. -P. Plouffe-Demers and Y. Zhang and D. Sun and C. Blais},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041296131&doi=10.1038%2fs41598-018-19971-1&partnerID=40&md5=b9e70f2d9ac7c641171bd6e450316846},
doi = {10.1038/s41598-018-19971-1},
issn = {20452322},
year = {2018},
date = {2018-01-01},
journal = {Scientific Reports},
volume = {8},
number = {1},
abstract = {Several previous studies of eye movements have put forward that, during face recognition, Easterners spread their attention across a greater part of their visual field than Westerners. Recently, we found that culture's effect on the perception of faces reaches mechanisms deeper than eye movements, therefore affecting the very nature of information sampled by the visual system: That is, Westerners globally rely more than Easterners on fine-grained visual information (i.e. high spatial frequencies; SFs), whereas Easterners rely more on coarse-grained visual information (i.e. low SFs). These findings suggest that culture influences basic visual processes; however, the temporal onset and dynamics of these culturespecific perceptual differences are still unknown. Here, we investigate the time course of SF use in Western Caucasian (Canadian) and East Asian (Chinese) observers during a face identification task. Firstly, our results confirm that Easterners use relatively lower SFs than Westerners, while the latter use relatively higher SFs. More importantly, our results indicate that these differences arise as early as 34 ms after stimulus onset, and remain stable through time. Our research supports the hypothesis that Westerners and Easterners initially rely on different types of visual information during face processing. © The Author(s) 2018.},
note = {Publisher: Nature Publishing Group},
keywords = {adult, article, Asian Continental Ancestry Group, attention, Canada, Caucasian, European Continental Ancestry Group, eye movement, Eye movements, Facial Recognition, female, financial management, human, human experiment, Humans, male, Pattern Recognition, physiology, stimulus, Visual, visual information, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Several previous studies of eye movements have put forward that, during face recognition, Easterners spread their attention across a greater part of their visual field than Westerners. Recently, we found that culture's effect on the perception of faces reaches mechanisms deeper than eye movements, therefore affecting the very nature of information sampled by the visual system: That is, Westerners globally rely more than Easterners on fine-grained visual information (i.e. high spatial frequencies; SFs), whereas Easterners rely more on coarse-grained visual information (i.e. low SFs). These findings suggest that culture influences basic visual processes; however, the temporal onset and dynamics of these culturespecific perceptual differences are still unknown. Here, we investigate the time course of SF use in Western Caucasian (Canadian) and East Asian (Chinese) observers during a face identification task. Firstly, our results confirm that Easterners use relatively lower SFs than Westerners, while the latter use relatively higher SFs. More importantly, our results indicate that these differences arise as early as 34 ms after stimulus onset, and remain stable through time. Our research supports the hypothesis that Westerners and Easterners initially rely on different types of visual information during face processing. © The Author(s) 2018.
2.
Blais, C.; Jack, R. E.; Scheepers, C.; Fiset, D.; Caldara, R.
Culture shapes how we look at faces Article de journal
Dans: PLoS ONE, vol. 3, no 8, 2008, ISSN: 19326203 (ISSN).
Résumé | Liens | BibTeX | Étiquettes: adult, article, Asian, Asian Continental Ancestry Group, Caucasian, Classification, Cross-Cultural Comparison, cultural anthropology, cultural factor, Culture, East Asian, European Continental Ancestry Group, Eye, eye fixation, eye movement, Eye movements, Face, face asymmetry, face recognition, female, Fixation, histology, human, human experiment, Humans, Learning, male, methodology, Mouth, normal human, Nose, observer variation, Ocular, physiology, race difference, recognition, Recognition (Psychology), vision, visual memory, Visual Perception
@article{blais_culture_2008,
title = {Culture shapes how we look at faces},
author = {C. Blais and R. E. Jack and C. Scheepers and D. Fiset and R. Caldara},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-51549087752&doi=10.1371%2fjournal.pone.0003022&partnerID=40&md5=e75dcf9792dbd03fd1ef5894b81bfc4f},
doi = {10.1371/journal.pone.0003022},
issn = {19326203 (ISSN)},
year = {2008},
date = {2008-01-01},
journal = {PLoS ONE},
volume = {3},
number = {8},
abstract = {Background: Face processing, amongst many basic visual skills, is thought to be invariant across all humans. From as early as 1965, studies of eye movements have consistently revealed a systematic triangular sequence of fixations over the eyes and the mouth, suggesting that faces elicit a universal, biologically-determined information extraction pattern. Methodology/Principal Findings: Here we monitored the eye movements of Western Caucasian and East Asian observers while they learned, recognized, and categorized by race Western Caucasian and East Asian faces. Western Caucasian observers reproduced a scattered triangular pattern of fixations for faces of both races and across tasks. Contrary to intuition, East Asian observers focused more on the central region of the face. Conclusions/Significance: These results demonstrate that face processing can no longer be considered as arising from a universal series of perceptual events. The strategy employed to extract visual information from faces differs across cultures. © 2008 Blais et al.},
keywords = {adult, article, Asian, Asian Continental Ancestry Group, Caucasian, Classification, Cross-Cultural Comparison, cultural anthropology, cultural factor, Culture, East Asian, European Continental Ancestry Group, Eye, eye fixation, eye movement, Eye movements, Face, face asymmetry, face recognition, female, Fixation, histology, human, human experiment, Humans, Learning, male, methodology, Mouth, normal human, Nose, observer variation, Ocular, physiology, race difference, recognition, Recognition (Psychology), vision, visual memory, Visual Perception},
pubstate = {published},
tppubtype = {article}
}
Background: Face processing, amongst many basic visual skills, is thought to be invariant across all humans. From as early as 1965, studies of eye movements have consistently revealed a systematic triangular sequence of fixations over the eyes and the mouth, suggesting that faces elicit a universal, biologically-determined information extraction pattern. Methodology/Principal Findings: Here we monitored the eye movements of Western Caucasian and East Asian observers while they learned, recognized, and categorized by race Western Caucasian and East Asian faces. Western Caucasian observers reproduced a scattered triangular pattern of fixations for faces of both races and across tasks. Contrary to intuition, East Asian observers focused more on the central region of the face. Conclusions/Significance: These results demonstrate that face processing can no longer be considered as arising from a universal series of perceptual events. The strategy employed to extract visual information from faces differs across cultures. © 2008 Blais et al.