Cargando…
Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation
This study investigates categorization of human and ape faces in 9-month-olds using a Fast Periodic Visual Stimulation (FPVS) paradigm while measuring EEG. Categorization responses are elicited only if infants discriminate between different categories and generalize across exemplars within each cate...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624891/ https://www.ncbi.nlm.nih.gov/pubmed/28970508 http://dx.doi.org/10.1038/s41598-017-12760-2 |
_version_ | 1783268306347622400 |
---|---|
author | Peykarjou, Stefanie Hoehl, Stefanie Pauen, Sabina Rossion, Bruno |
author_facet | Peykarjou, Stefanie Hoehl, Stefanie Pauen, Sabina Rossion, Bruno |
author_sort | Peykarjou, Stefanie |
collection | PubMed |
description | This study investigates categorization of human and ape faces in 9-month-olds using a Fast Periodic Visual Stimulation (FPVS) paradigm while measuring EEG. Categorization responses are elicited only if infants discriminate between different categories and generalize across exemplars within each category. In study 1, human or ape faces were presented as standard and deviant stimuli in upright and inverted trials. Upright ape faces presented among humans elicited strong categorization responses, whereas responses for upright human faces and for inverted ape faces were smaller. Deviant inverted human faces did not elicit categorization. Data were best explained by a model with main effects of species and orientation. However, variance of low-level image characteristics was higher for the ape than the human category. Variance was matched to replicate this finding in an independent sample (study 2). Both human and ape faces elicited categorization in upright and inverted conditions, but upright ape faces elicited the strongest responses. Again, data were best explained by a model of two main effects. These experiments demonstrate that 9-month-olds rapidly categorize faces, and unfamiliar faces presented among human faces elicit increased categorization responses. This likely reflects habituation for the familiar standard category, and stronger release for the unfamiliar category deviants. |
format | Online Article Text |
id | pubmed-5624891 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-56248912017-10-12 Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation Peykarjou, Stefanie Hoehl, Stefanie Pauen, Sabina Rossion, Bruno Sci Rep Article This study investigates categorization of human and ape faces in 9-month-olds using a Fast Periodic Visual Stimulation (FPVS) paradigm while measuring EEG. Categorization responses are elicited only if infants discriminate between different categories and generalize across exemplars within each category. In study 1, human or ape faces were presented as standard and deviant stimuli in upright and inverted trials. Upright ape faces presented among humans elicited strong categorization responses, whereas responses for upright human faces and for inverted ape faces were smaller. Deviant inverted human faces did not elicit categorization. Data were best explained by a model with main effects of species and orientation. However, variance of low-level image characteristics was higher for the ape than the human category. Variance was matched to replicate this finding in an independent sample (study 2). Both human and ape faces elicited categorization in upright and inverted conditions, but upright ape faces elicited the strongest responses. Again, data were best explained by a model of two main effects. These experiments demonstrate that 9-month-olds rapidly categorize faces, and unfamiliar faces presented among human faces elicit increased categorization responses. This likely reflects habituation for the familiar standard category, and stronger release for the unfamiliar category deviants. Nature Publishing Group UK 2017-10-02 /pmc/articles/PMC5624891/ /pubmed/28970508 http://dx.doi.org/10.1038/s41598-017-12760-2 Text en © The Author(s) 2017 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 Peykarjou, Stefanie Hoehl, Stefanie Pauen, Sabina Rossion, Bruno Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation |
title | Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation |
title_full | Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation |
title_fullStr | Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation |
title_full_unstemmed | Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation |
title_short | Rapid Categorization of Human and Ape Faces in 9-Month-Old Infants Revealed by Fast Periodic Visual Stimulation |
title_sort | rapid categorization of human and ape faces in 9-month-old infants revealed by fast periodic visual stimulation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5624891/ https://www.ncbi.nlm.nih.gov/pubmed/28970508 http://dx.doi.org/10.1038/s41598-017-12760-2 |
work_keys_str_mv | AT peykarjoustefanie rapidcategorizationofhumanandapefacesin9montholdinfantsrevealedbyfastperiodicvisualstimulation AT hoehlstefanie rapidcategorizationofhumanandapefacesin9montholdinfantsrevealedbyfastperiodicvisualstimulation AT pauensabina rapidcategorizationofhumanandapefacesin9montholdinfantsrevealedbyfastperiodicvisualstimulation AT rossionbruno rapidcategorizationofhumanandapefacesin9montholdinfantsrevealedbyfastperiodicvisualstimulation |