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Time Course of Cultural Differences in Spatial Frequency Use for Face Identification
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, t...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5788938/ https://www.ncbi.nlm.nih.gov/pubmed/29379032 http://dx.doi.org/10.1038/s41598-018-19971-1 |
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author | Estéphan, Amanda Fiset, Daniel Saumure, Camille Plouffe-Demers, Marie-Pier Zhang, Ye Sun, Dan Blais, Caroline |
author_facet | Estéphan, Amanda Fiset, Daniel Saumure, Camille Plouffe-Demers, Marie-Pier Zhang, Ye Sun, Dan Blais, Caroline |
author_sort | Estéphan, Amanda |
collection | PubMed |
description | 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 culture-specific 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. |
format | Online Article Text |
id | pubmed-5788938 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-57889382018-02-08 Time Course of Cultural Differences in Spatial Frequency Use for Face Identification Estéphan, Amanda Fiset, Daniel Saumure, Camille Plouffe-Demers, Marie-Pier Zhang, Ye Sun, Dan Blais, Caroline Sci Rep 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 culture-specific 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. Nature Publishing Group UK 2018-01-29 /pmc/articles/PMC5788938/ /pubmed/29379032 http://dx.doi.org/10.1038/s41598-018-19971-1 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Estéphan, Amanda Fiset, Daniel Saumure, Camille Plouffe-Demers, Marie-Pier Zhang, Ye Sun, Dan Blais, Caroline Time Course of Cultural Differences in Spatial Frequency Use for Face Identification |
title | Time Course of Cultural Differences in Spatial Frequency Use for Face Identification |
title_full | Time Course of Cultural Differences in Spatial Frequency Use for Face Identification |
title_fullStr | Time Course of Cultural Differences in Spatial Frequency Use for Face Identification |
title_full_unstemmed | Time Course of Cultural Differences in Spatial Frequency Use for Face Identification |
title_short | Time Course of Cultural Differences in Spatial Frequency Use for Face Identification |
title_sort | time course of cultural differences in spatial frequency use for face identification |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5788938/ https://www.ncbi.nlm.nih.gov/pubmed/29379032 http://dx.doi.org/10.1038/s41598-018-19971-1 |
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