Cargando…

Affective and contextual values modulate spatial frequency use in object recognition

Visual object recognition is of fundamental importance in our everyday interaction with the environment. Recent models of visual perception emphasize the role of top-down predictions facilitating object recognition via initial guesses that limit the number of object representations that need to be c...

Descripción completa

Detalles Bibliográficos
Autores principales: Caplette, Laurent, West, Gregory, Gomot, Marie, Gosselin, Frédéric, Wicker, Bruno
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4036062/
https://www.ncbi.nlm.nih.gov/pubmed/24904514
http://dx.doi.org/10.3389/fpsyg.2014.00512
_version_ 1782318130111971328
author Caplette, Laurent
West, Gregory
Gomot, Marie
Gosselin, Frédéric
Wicker, Bruno
author_facet Caplette, Laurent
West, Gregory
Gomot, Marie
Gosselin, Frédéric
Wicker, Bruno
author_sort Caplette, Laurent
collection PubMed
description Visual object recognition is of fundamental importance in our everyday interaction with the environment. Recent models of visual perception emphasize the role of top-down predictions facilitating object recognition via initial guesses that limit the number of object representations that need to be considered. Several results suggest that this rapid and efficient object processing relies on the early extraction and processing of low spatial frequencies (LSF). The present study aimed to investigate the SF content of visual object representations and its modulation by contextual and affective values of the perceived object during a picture-name verification task. Stimuli consisted of pictures of objects equalized in SF content and categorized as having low or high affective and contextual values. To access the SF content of stored visual representations of objects, SFs of each image were then randomly sampled on a trial-by-trial basis. Results reveal that intermediate SFs between 14 and 24 cycles per object (2.3–4 cycles per degree) are correlated with fast and accurate identification for all categories of objects. Moreover, there was a significant interaction between affective and contextual values over the SFs correlating with fast recognition. These results suggest that affective and contextual values of a visual object modulate the SF content of its internal representation, thus highlighting the flexibility of the visual recognition system.
format Online
Article
Text
id pubmed-4036062
institution National Center for Biotechnology Information
language English
publishDate 2014
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-40360622014-06-05 Affective and contextual values modulate spatial frequency use in object recognition Caplette, Laurent West, Gregory Gomot, Marie Gosselin, Frédéric Wicker, Bruno Front Psychol Psychology Visual object recognition is of fundamental importance in our everyday interaction with the environment. Recent models of visual perception emphasize the role of top-down predictions facilitating object recognition via initial guesses that limit the number of object representations that need to be considered. Several results suggest that this rapid and efficient object processing relies on the early extraction and processing of low spatial frequencies (LSF). The present study aimed to investigate the SF content of visual object representations and its modulation by contextual and affective values of the perceived object during a picture-name verification task. Stimuli consisted of pictures of objects equalized in SF content and categorized as having low or high affective and contextual values. To access the SF content of stored visual representations of objects, SFs of each image were then randomly sampled on a trial-by-trial basis. Results reveal that intermediate SFs between 14 and 24 cycles per object (2.3–4 cycles per degree) are correlated with fast and accurate identification for all categories of objects. Moreover, there was a significant interaction between affective and contextual values over the SFs correlating with fast recognition. These results suggest that affective and contextual values of a visual object modulate the SF content of its internal representation, thus highlighting the flexibility of the visual recognition system. Frontiers Media S.A. 2014-05-28 /pmc/articles/PMC4036062/ /pubmed/24904514 http://dx.doi.org/10.3389/fpsyg.2014.00512 Text en Copyright © 2014 Caplette, West, Gomot, Gosselin and Wicker. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Psychology
Caplette, Laurent
West, Gregory
Gomot, Marie
Gosselin, Frédéric
Wicker, Bruno
Affective and contextual values modulate spatial frequency use in object recognition
title Affective and contextual values modulate spatial frequency use in object recognition
title_full Affective and contextual values modulate spatial frequency use in object recognition
title_fullStr Affective and contextual values modulate spatial frequency use in object recognition
title_full_unstemmed Affective and contextual values modulate spatial frequency use in object recognition
title_short Affective and contextual values modulate spatial frequency use in object recognition
title_sort affective and contextual values modulate spatial frequency use in object recognition
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4036062/
https://www.ncbi.nlm.nih.gov/pubmed/24904514
http://dx.doi.org/10.3389/fpsyg.2014.00512
work_keys_str_mv AT caplettelaurent affectiveandcontextualvaluesmodulatespatialfrequencyuseinobjectrecognition
AT westgregory affectiveandcontextualvaluesmodulatespatialfrequencyuseinobjectrecognition
AT gomotmarie affectiveandcontextualvaluesmodulatespatialfrequencyuseinobjectrecognition
AT gosselinfrederic affectiveandcontextualvaluesmodulatespatialfrequencyuseinobjectrecognition
AT wickerbruno affectiveandcontextualvaluesmodulatespatialfrequencyuseinobjectrecognition