The contribution of rods and cones to brightness induction

Autores
Barrionuevo, Pablo Alejandro
Año de publicación
2023
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Retinal mechanisms are involved in the early processing of brightness. However, brightness induction studies that discriminate the contributions of rods and cones at the same light adaptation have been rarely conducted, possibly due to technical limitations. In this study, we assessed isolated rod, isolated cone, and combined rod and cone (LMSR) conditions for contrast and assimilation induction stimuli, using a four-primary projector and the silent substitution method. We generated induction stimuli in mesopic light adaptation with embedded matching and reference patches. Participants had to choose the brighter patch and the induction effect was computed as the normalized difference between the patches’ intensities at the point of subjective equality. For the LMSR condition, contrast and assimilation induction stimuli produced similar responses, and these were significantly higher than responses for a control non-induction stimulus. Similar results were found for the cone condition, although there was a trend for a higher contrast than assimilation effect. For the rod condition, the brightness assimilation effect was significantly higher than brightness contrast. Comparing the three photoreceptor conditions, it became clear that the combined response under mesopic viewing was mostly determined by cones. Therefore, rod-driven brightness induction is notably different from induction obtained in usual photopic or mesopic viewing conditions where cones are involved. We argue that the different behaviour for isolated responses could be explained by asymmetric retinal contrast gain for rods and cones.
Fil: Barrionuevo, Pablo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina
45th European Conference on Visual Perception
Paphos
Chipre
Universidad de Chipre
Universidad de Limassol
Materia
ROD
CONE
MESOPIC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/282600
Acceder
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spelling The contribution of rods and cones to brightness inductionBarrionuevo, Pablo AlejandroRODCONEMESOPIChttps://purl.org/becyt/ford/5.1https://purl.org/becyt/ford/5https://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Retinal mechanisms are involved in the early processing of brightness. However, brightness induction studies that discriminate the contributions of rods and cones at the same light adaptation have been rarely conducted, possibly due to technical limitations. In this study, we assessed isolated rod, isolated cone, and combined rod and cone (LMSR) conditions for contrast and assimilation induction stimuli, using a four-primary projector and the silent substitution method. We generated induction stimuli in mesopic light adaptation with embedded matching and reference patches. Participants had to choose the brighter patch and the induction effect was computed as the normalized difference between the patches’ intensities at the point of subjective equality. For the LMSR condition, contrast and assimilation induction stimuli produced similar responses, and these were significantly higher than responses for a control non-induction stimulus. Similar results were found for the cone condition, although there was a trend for a higher contrast than assimilation effect. For the rod condition, the brightness assimilation effect was significantly higher than brightness contrast. Comparing the three photoreceptor conditions, it became clear that the combined response under mesopic viewing was mostly determined by cones. Therefore, rod-driven brightness induction is notably different from induction obtained in usual photopic or mesopic viewing conditions where cones are involved. We argue that the different behaviour for isolated responses could be explained by asymmetric retinal contrast gain for rods and cones.Fil: Barrionuevo, Pablo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina45th European Conference on Visual PerceptionPaphosChipreUniversidad de ChipreUniversidad de LimassolSAGE Publications2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectConferenciaJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfhttp://hdl.handle.net/11336/282600The contribution of rods and cones to brightness induction; 45th European Conference on Visual Perception; Paphos; Chipre; 2023; 20-200301-00661468-4233CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.sagepub.com/page/pec/collections/ecvp-abstracts/index/ecvp-2023Internacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-03-11T12:15:57Zoai:ri.conicet.gov.ar:11336/282600instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-03-11 12:15:57.624CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The contribution of rods and cones to brightness induction
title The contribution of rods and cones to brightness induction
spellingShingle The contribution of rods and cones to brightness induction
Barrionuevo, Pablo Alejandro
ROD
CONE
MESOPIC
title_short The contribution of rods and cones to brightness induction
title_full The contribution of rods and cones to brightness induction
title_fullStr The contribution of rods and cones to brightness induction
title_full_unstemmed The contribution of rods and cones to brightness induction
title_sort The contribution of rods and cones to brightness induction
dc.creator.none.fl_str_mv Barrionuevo, Pablo Alejandro
author Barrionuevo, Pablo Alejandro
author_facet Barrionuevo, Pablo Alejandro
author_role author
dc.subject.none.fl_str_mv ROD
CONE
MESOPIC
topic ROD
CONE
MESOPIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/5.1
https://purl.org/becyt/ford/5
https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv Retinal mechanisms are involved in the early processing of brightness. However, brightness induction studies that discriminate the contributions of rods and cones at the same light adaptation have been rarely conducted, possibly due to technical limitations. In this study, we assessed isolated rod, isolated cone, and combined rod and cone (LMSR) conditions for contrast and assimilation induction stimuli, using a four-primary projector and the silent substitution method. We generated induction stimuli in mesopic light adaptation with embedded matching and reference patches. Participants had to choose the brighter patch and the induction effect was computed as the normalized difference between the patches’ intensities at the point of subjective equality. For the LMSR condition, contrast and assimilation induction stimuli produced similar responses, and these were significantly higher than responses for a control non-induction stimulus. Similar results were found for the cone condition, although there was a trend for a higher contrast than assimilation effect. For the rod condition, the brightness assimilation effect was significantly higher than brightness contrast. Comparing the three photoreceptor conditions, it became clear that the combined response under mesopic viewing was mostly determined by cones. Therefore, rod-driven brightness induction is notably different from induction obtained in usual photopic or mesopic viewing conditions where cones are involved. We argue that the different behaviour for isolated responses could be explained by asymmetric retinal contrast gain for rods and cones.
Fil: Barrionuevo, Pablo Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Investigación en Luz, Ambiente y Visión. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Instituto de Investigación en Luz, Ambiente y Visión; Argentina
45th European Conference on Visual Perception
Paphos
Chipre
Universidad de Chipre
Universidad de Limassol
description Retinal mechanisms are involved in the early processing of brightness. However, brightness induction studies that discriminate the contributions of rods and cones at the same light adaptation have been rarely conducted, possibly due to technical limitations. In this study, we assessed isolated rod, isolated cone, and combined rod and cone (LMSR) conditions for contrast and assimilation induction stimuli, using a four-primary projector and the silent substitution method. We generated induction stimuli in mesopic light adaptation with embedded matching and reference patches. Participants had to choose the brighter patch and the induction effect was computed as the normalized difference between the patches’ intensities at the point of subjective equality. For the LMSR condition, contrast and assimilation induction stimuli produced similar responses, and these were significantly higher than responses for a control non-induction stimulus. Similar results were found for the cone condition, although there was a trend for a higher contrast than assimilation effect. For the rod condition, the brightness assimilation effect was significantly higher than brightness contrast. Comparing the three photoreceptor conditions, it became clear that the combined response under mesopic viewing was mostly determined by cones. Therefore, rod-driven brightness induction is notably different from induction obtained in usual photopic or mesopic viewing conditions where cones are involved. We argue that the different behaviour for isolated responses could be explained by asymmetric retinal contrast gain for rods and cones.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Conferencia
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/282600
The contribution of rods and cones to brightness induction; 45th European Conference on Visual Perception; Paphos; Chipre; 2023; 20-20
0301-0066
1468-4233
CONICET Digital
CONICET
url http://hdl.handle.net/11336/282600
identifier_str_mv The contribution of rods and cones to brightness induction; 45th European Conference on Visual Perception; Paphos; Chipre; 2023; 20-20
0301-0066
1468-4233
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.sagepub.com/page/pec/collections/ecvp-abstracts/index/ecvp-2023
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/vnd.openxmlformats-officedocument.wordprocessingml.document
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv SAGE Publications
publisher.none.fl_str_mv SAGE Publications
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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