Perceptual filling-in of stereoscopically presented targets
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Arquivos brasileiros de oftalmologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492007000100018 |
Resumo: | PURPOSE: To investigate the influence of parametric variation on the filling-in latency of stereoscopically presented stimuli. METHODS: Anaglyphs were created using two circular patches of 0.3º diameter, 0.5º disparity and 6º eccentricity from fixation point. Targets were presented at the visual field midline, 90º and 270º positions, with crossed and uncrossed disparity. The time elapsed for disappearance of the target under voluntary steady fixation was computed. Eighteen subjects tested. RESULTS: There was no significant difference between crossed and uncrossed disparities, nor between near or far from the vertical horopter line. The significant difference was between upper and lower visual field positions. CONCLUSION: The results show that: (i) stereoscopic presentation does not influence the target filling-in latency; (ii) differences between dorsal and ventral visual stream might influence target filling-in latency. |
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Arquivos brasileiros de oftalmologia (Online) |
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Perceptual filling-in of stereoscopically presented targetsPerceptual maskingVision disparity/physiologyVisual perception/physiologyVisual fieldPURPOSE: To investigate the influence of parametric variation on the filling-in latency of stereoscopically presented stimuli. METHODS: Anaglyphs were created using two circular patches of 0.3º diameter, 0.5º disparity and 6º eccentricity from fixation point. Targets were presented at the visual field midline, 90º and 270º positions, with crossed and uncrossed disparity. The time elapsed for disappearance of the target under voluntary steady fixation was computed. Eighteen subjects tested. RESULTS: There was no significant difference between crossed and uncrossed disparities, nor between near or far from the vertical horopter line. The significant difference was between upper and lower visual field positions. CONCLUSION: The results show that: (i) stereoscopic presentation does not influence the target filling-in latency; (ii) differences between dorsal and ventral visual stream might influence target filling-in latency.Conselho Brasileiro de Oftalmologia2007-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492007000100018Arquivos Brasileiros de Oftalmologia v.70 n.1 2007reponame:Arquivos brasileiros de oftalmologia (Online)instname:Conselho Brasileiro de Oftalmologia (CBO)instacron:CBO10.1590/S0004-27492007000100018info:eu-repo/semantics/openAccessCouto,Márcia FurukawaPessoa,Valdir Filgueiraseng2007-05-10T00:00:00Zoai:scielo:S0004-27492007000100018Revistahttp://aboonline.org.br/https://old.scielo.br/oai/scielo-oai.phpaboonline@cbo.com.br||abo@cbo.com.br1678-29250004-2749opendoar:2007-05-10T00:00Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO)false |
dc.title.none.fl_str_mv |
Perceptual filling-in of stereoscopically presented targets |
title |
Perceptual filling-in of stereoscopically presented targets |
spellingShingle |
Perceptual filling-in of stereoscopically presented targets Couto,Márcia Furukawa Perceptual masking Vision disparity/physiology Visual perception/physiology Visual field |
title_short |
Perceptual filling-in of stereoscopically presented targets |
title_full |
Perceptual filling-in of stereoscopically presented targets |
title_fullStr |
Perceptual filling-in of stereoscopically presented targets |
title_full_unstemmed |
Perceptual filling-in of stereoscopically presented targets |
title_sort |
Perceptual filling-in of stereoscopically presented targets |
author |
Couto,Márcia Furukawa |
author_facet |
Couto,Márcia Furukawa Pessoa,Valdir Filgueiras |
author_role |
author |
author2 |
Pessoa,Valdir Filgueiras |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Couto,Márcia Furukawa Pessoa,Valdir Filgueiras |
dc.subject.por.fl_str_mv |
Perceptual masking Vision disparity/physiology Visual perception/physiology Visual field |
topic |
Perceptual masking Vision disparity/physiology Visual perception/physiology Visual field |
description |
PURPOSE: To investigate the influence of parametric variation on the filling-in latency of stereoscopically presented stimuli. METHODS: Anaglyphs were created using two circular patches of 0.3º diameter, 0.5º disparity and 6º eccentricity from fixation point. Targets were presented at the visual field midline, 90º and 270º positions, with crossed and uncrossed disparity. The time elapsed for disappearance of the target under voluntary steady fixation was computed. Eighteen subjects tested. RESULTS: There was no significant difference between crossed and uncrossed disparities, nor between near or far from the vertical horopter line. The significant difference was between upper and lower visual field positions. CONCLUSION: The results show that: (i) stereoscopic presentation does not influence the target filling-in latency; (ii) differences between dorsal and ventral visual stream might influence target filling-in latency. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492007000100018 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27492007000100018 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0004-27492007000100018 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Conselho Brasileiro de Oftalmologia |
publisher.none.fl_str_mv |
Conselho Brasileiro de Oftalmologia |
dc.source.none.fl_str_mv |
Arquivos Brasileiros de Oftalmologia v.70 n.1 2007 reponame:Arquivos brasileiros de oftalmologia (Online) instname:Conselho Brasileiro de Oftalmologia (CBO) instacron:CBO |
instname_str |
Conselho Brasileiro de Oftalmologia (CBO) |
instacron_str |
CBO |
institution |
CBO |
reponame_str |
Arquivos brasileiros de oftalmologia (Online) |
collection |
Arquivos brasileiros de oftalmologia (Online) |
repository.name.fl_str_mv |
Arquivos brasileiros de oftalmologia (Online) - Conselho Brasileiro de Oftalmologia (CBO) |
repository.mail.fl_str_mv |
aboonline@cbo.com.br||abo@cbo.com.br |
_version_ |
1754209024139591680 |