Spatial Organization in Visual Perception of Lightness

Detalhes bibliográficos
Autor(a) principal: Loureiro Ribeiro, Alexandre José
Data de Publicação: 2010
Outros Autores: de Souza, Wânia Cristina
Tipo de documento: Artigo
Idioma: por
Título da fonte: Psicologia (Universidade de Brasília. Online)
Texto Completo: https://periodicos.unb.br/index.php/revistaptp/article/view/17799
Resumo: This study investigated the influence of physical variations of stimuli, based on the spatial organization of figure-ground, which is created by the association of illusory effects of simultaneous lightness contrast and subjective contours. One hundred and sixty matrixes were presented to each participant, among a total of 64. Each matrix was composed of one sample stimulus and four comparison stimuli, and the task was to identify which of the four comparison stimuli corresponded to the sample stimulus. The significant difference between the averages of visual adjustment that were verified for the medium subjective contour and for the control condition (without contour) showed that the classical formation of Kanizsa subjective contours influenced visual perception when associated with the effect of simultaneous lightness contrast.
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spelling Spatial Organization in Visual Perception of LightnessOrganização Espacial na Percepção Visual de LuminosidadePercepção visual de luminosidadeContraste simultâneo de luminosidadeContornos subjetivosOrganização espacialPercepção figura-fundoVisual perception of lightnessSimultaneous lightness contrastSubjective contoursSpatial organizationFigure-ground perceptionThis study investigated the influence of physical variations of stimuli, based on the spatial organization of figure-ground, which is created by the association of illusory effects of simultaneous lightness contrast and subjective contours. One hundred and sixty matrixes were presented to each participant, among a total of 64. Each matrix was composed of one sample stimulus and four comparison stimuli, and the task was to identify which of the four comparison stimuli corresponded to the sample stimulus. The significant difference between the averages of visual adjustment that were verified for the medium subjective contour and for the control condition (without contour) showed that the classical formation of Kanizsa subjective contours influenced visual perception when associated with the effect of simultaneous lightness contrast.Este estudo analisou a influência de variações físicas dos estímulos, com base na organização espacial de figura-fundo criada pela associação dos efeitos ilusórios de contraste simultâneo de luminosidade e de contornos subjetivos. A cada participante, no total de 64, foram apresentadas 160 matrizes de escolha, cada uma composta de um estímulo modelo e quatro estímulos de comparação, devendo ser identificado qual dos quatro estímulos de comparação correspondia ao estímulo modelo. A diferença significativa entre as médias de ajuste visual verificadas para a condição de contorno subjetivo médio e para a condição controle (sem contorno) mostrou que a formação clássica de contornos subjetivos de Kanizsa, quando associada ao efeito de contraste simultâneo de luminosidade, influenciou a percepção de luminosidade dos participantes.Instituto de Psicologia - Universidade de Brasília2010-07-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.unb.br/index.php/revistaptp/article/view/17799Psicologia: Teoria e Pesquisa; Vol. 26 No. 2: Revista Psicologia: Teoria e Pesquisa; 273-280Psicologia: Teoria e Pesquisa; Vol. 26 Núm. 2: Revista Psicologia: Teoria e Pesquisa; 273-280Psicologia: Teoria e Pesquisa; Vol. 26 No. 2: Revista Psicologia: Teoria e Pesquisa; 273-280Psicologia: Teoria e Pesquisa; v. 26 n. 2: Revista Psicologia: Teoria e Pesquisa; 273-2801806-34460102-3772reponame:Psicologia (Universidade de Brasília. Online)instname:Universidade de Brasília (UnB)instacron:UNBporhttps://periodicos.unb.br/index.php/revistaptp/article/view/17799/16297Loureiro Ribeiro, Alexandre Joséde Souza, Wânia Cristinainfo:eu-repo/semantics/openAccess2018-10-22T22:31:07Zoai:ojs.pkp.sfu.ca:article/17799Revistahttps://periodicos.unb.br/index.php/revistaptp/indexPUBhttps://periodicos.unb.br/index.php/revistaptp/oairevistaptp@gmail.com1806-34460102-3772opendoar:2018-10-22T22:31:07Psicologia (Universidade de Brasília. Online) - Universidade de Brasília (UnB)false
dc.title.none.fl_str_mv Spatial Organization in Visual Perception of Lightness
Organização Espacial na Percepção Visual de Luminosidade
title Spatial Organization in Visual Perception of Lightness
spellingShingle Spatial Organization in Visual Perception of Lightness
Loureiro Ribeiro, Alexandre José
Percepção visual de luminosidade
Contraste simultâneo de luminosidade
Contornos subjetivos
Organização espacial
Percepção figura-fundo
Visual perception of lightness
Simultaneous lightness contrast
Subjective contours
Spatial organization
Figure-ground perception
title_short Spatial Organization in Visual Perception of Lightness
title_full Spatial Organization in Visual Perception of Lightness
title_fullStr Spatial Organization in Visual Perception of Lightness
title_full_unstemmed Spatial Organization in Visual Perception of Lightness
title_sort Spatial Organization in Visual Perception of Lightness
author Loureiro Ribeiro, Alexandre José
author_facet Loureiro Ribeiro, Alexandre José
de Souza, Wânia Cristina
author_role author
author2 de Souza, Wânia Cristina
author2_role author
dc.contributor.author.fl_str_mv Loureiro Ribeiro, Alexandre José
de Souza, Wânia Cristina
dc.subject.por.fl_str_mv Percepção visual de luminosidade
Contraste simultâneo de luminosidade
Contornos subjetivos
Organização espacial
Percepção figura-fundo
Visual perception of lightness
Simultaneous lightness contrast
Subjective contours
Spatial organization
Figure-ground perception
topic Percepção visual de luminosidade
Contraste simultâneo de luminosidade
Contornos subjetivos
Organização espacial
Percepção figura-fundo
Visual perception of lightness
Simultaneous lightness contrast
Subjective contours
Spatial organization
Figure-ground perception
description This study investigated the influence of physical variations of stimuli, based on the spatial organization of figure-ground, which is created by the association of illusory effects of simultaneous lightness contrast and subjective contours. One hundred and sixty matrixes were presented to each participant, among a total of 64. Each matrix was composed of one sample stimulus and four comparison stimuli, and the task was to identify which of the four comparison stimuli corresponded to the sample stimulus. The significant difference between the averages of visual adjustment that were verified for the medium subjective contour and for the control condition (without contour) showed that the classical formation of Kanizsa subjective contours influenced visual perception when associated with the effect of simultaneous lightness contrast.
publishDate 2010
dc.date.none.fl_str_mv 2010-07-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.unb.br/index.php/revistaptp/article/view/17799
url https://periodicos.unb.br/index.php/revistaptp/article/view/17799
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.unb.br/index.php/revistaptp/article/view/17799/16297
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Instituto de Psicologia - Universidade de Brasília
publisher.none.fl_str_mv Instituto de Psicologia - Universidade de Brasília
dc.source.none.fl_str_mv Psicologia: Teoria e Pesquisa; Vol. 26 No. 2: Revista Psicologia: Teoria e Pesquisa; 273-280
Psicologia: Teoria e Pesquisa; Vol. 26 Núm. 2: Revista Psicologia: Teoria e Pesquisa; 273-280
Psicologia: Teoria e Pesquisa; Vol. 26 No. 2: Revista Psicologia: Teoria e Pesquisa; 273-280
Psicologia: Teoria e Pesquisa; v. 26 n. 2: Revista Psicologia: Teoria e Pesquisa; 273-280
1806-3446
0102-3772
reponame:Psicologia (Universidade de Brasília. Online)
instname:Universidade de Brasília (UnB)
instacron:UNB
instname_str Universidade de Brasília (UnB)
instacron_str UNB
institution UNB
reponame_str Psicologia (Universidade de Brasília. Online)
collection Psicologia (Universidade de Brasília. Online)
repository.name.fl_str_mv Psicologia (Universidade de Brasília. Online) - Universidade de Brasília (UnB)
repository.mail.fl_str_mv revistaptp@gmail.com
_version_ 1800211712749600768

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