Influence of background size, luminance and eccentricity on different adaptation mechanisms

Autores
Gloriani, Alejandro H.; Matesanz, Beatriz M.; Barrionuevo, Pablo Alejandro; Arranz, Isabel; Issolio, Luis Alberto; Mar, Santiago; Aparicio, Juan A.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Mechanisms of light adaptation have been traditionally explained with reference to psychophysical experimentation. However, the neural substrata involved in those mechanisms remain to be elucidated. Our study analyzed links between psychophysical measurements and retinal physiological evidence with consideration for the phenomena of rod-cone interactions, photon noise, and spatial summation. Threshold test luminances were obtained with steady background fields at mesopic and photopic light levels (i.e., 0.06-110 cd/m2) for retinal eccentricities from 0° to 15° using three combinations of background/test field sizes (i.e., 10°/2°, 10°/0.45°, and 1°/0.45°). A two-channel Maxwellian view optical system was employed to eliminate pupil effects on the measured thresholds. A model based on visual mechanisms that were described in the literature was optimized to fit the measured luminance thresholds in all experimental conditions. Our results can be described by a combination of visual mechanisms. We determined how spatial summation changed with eccentricity and how subtractive adaptation changed with eccentricity and background field size. According to our model, photon noise plays a significant role to explain contrast detection thresholds measured with the 1/0.45° background/test size combination at mesopic luminances and at off-axis eccentricities. In these conditions, our data reflect the presence of rod-cone interaction for eccentricities between 6° and 9° and luminances between 0.6 and 5 cd/m2. In spite of the increasing noise effects with eccentricity, results also show that the visual system tends to maintain a constant signal-to-noise ratio in the off-axis detection task over the whole mesopic range.
Fil: Gloriani, Alejandro H.. Universidad de Valladolid; España
Fil: Matesanz, Beatriz M.. Universidad de Valladolid; España
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
Fil: Arranz, Isabel. Universidad de Valladolid; España
Fil: Issolio, Luis Alberto. 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
Fil: Mar, Santiago. Universidad de Valladolid; España
Fil: Aparicio, Juan A.. Universidad de Valladolid; España
Materia
Light Adaptation
Photon Noise
Psychophysics
Retinal Gain Control
Rod-Cone Interaction
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/60700
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/60700
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of background size, luminance and eccentricity on different adaptation mechanismsGloriani, Alejandro H.Matesanz, Beatriz M.Barrionuevo, Pablo AlejandroArranz, IsabelIssolio, Luis AlbertoMar, SantiagoAparicio, Juan A.Light AdaptationPhoton NoisePsychophysicsRetinal Gain ControlRod-Cone Interactionhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Mechanisms of light adaptation have been traditionally explained with reference to psychophysical experimentation. However, the neural substrata involved in those mechanisms remain to be elucidated. Our study analyzed links between psychophysical measurements and retinal physiological evidence with consideration for the phenomena of rod-cone interactions, photon noise, and spatial summation. Threshold test luminances were obtained with steady background fields at mesopic and photopic light levels (i.e., 0.06-110 cd/m2) for retinal eccentricities from 0° to 15° using three combinations of background/test field sizes (i.e., 10°/2°, 10°/0.45°, and 1°/0.45°). A two-channel Maxwellian view optical system was employed to eliminate pupil effects on the measured thresholds. A model based on visual mechanisms that were described in the literature was optimized to fit the measured luminance thresholds in all experimental conditions. Our results can be described by a combination of visual mechanisms. We determined how spatial summation changed with eccentricity and how subtractive adaptation changed with eccentricity and background field size. According to our model, photon noise plays a significant role to explain contrast detection thresholds measured with the 1/0.45° background/test size combination at mesopic luminances and at off-axis eccentricities. In these conditions, our data reflect the presence of rod-cone interaction for eccentricities between 6° and 9° and luminances between 0.6 and 5 cd/m2. In spite of the increasing noise effects with eccentricity, results also show that the visual system tends to maintain a constant signal-to-noise ratio in the off-axis detection task over the whole mesopic range.Fil: Gloriani, Alejandro H.. Universidad de Valladolid; EspañaFil: Matesanz, Beatriz M.. Universidad de Valladolid; EspañaFil: 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; ArgentinaFil: Arranz, Isabel. Universidad de Valladolid; EspañaFil: Issolio, Luis Alberto. 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; ArgentinaFil: Mar, Santiago. Universidad de Valladolid; EspañaFil: Aparicio, Juan A.. Universidad de Valladolid; EspañaPergamon-Elsevier Science Ltd2016-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/60700Gloriani, Alejandro H.; Matesanz, Beatriz M.; Barrionuevo, Pablo Alejandro; Arranz, Isabel; Issolio, Luis Alberto; et al.; Influence of background size, luminance and eccentricity on different adaptation mechanisms; Pergamon-Elsevier Science Ltd; Vision Research; 125; 8-2016; 12-220042-6989CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S004269891630027Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.visres.2016.04.008info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4955780/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:19Zoai:ri.conicet.gov.ar:11336/60700instacron: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:34982025-09-29 09:38:20.158CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of background size, luminance and eccentricity on different adaptation mechanisms
title Influence of background size, luminance and eccentricity on different adaptation mechanisms
spellingShingle Influence of background size, luminance and eccentricity on different adaptation mechanisms
Gloriani, Alejandro H.
Light Adaptation
Photon Noise
Psychophysics
Retinal Gain Control
Rod-Cone Interaction
title_short Influence of background size, luminance and eccentricity on different adaptation mechanisms
title_full Influence of background size, luminance and eccentricity on different adaptation mechanisms
title_fullStr Influence of background size, luminance and eccentricity on different adaptation mechanisms
title_full_unstemmed Influence of background size, luminance and eccentricity on different adaptation mechanisms
title_sort Influence of background size, luminance and eccentricity on different adaptation mechanisms
dc.creator.none.fl_str_mv Gloriani, Alejandro H.
Matesanz, Beatriz M.
Barrionuevo, Pablo Alejandro
Arranz, Isabel
Issolio, Luis Alberto
Mar, Santiago
Aparicio, Juan A.
author Gloriani, Alejandro H.
author_facet Gloriani, Alejandro H.
Matesanz, Beatriz M.
Barrionuevo, Pablo Alejandro
Arranz, Isabel
Issolio, Luis Alberto
Mar, Santiago
Aparicio, Juan A.
author_role author
author2 Matesanz, Beatriz M.
Barrionuevo, Pablo Alejandro
Arranz, Isabel
Issolio, Luis Alberto
Mar, Santiago
Aparicio, Juan A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Light Adaptation
Photon Noise
Psychophysics
Retinal Gain Control
Rod-Cone Interaction
topic Light Adaptation
Photon Noise
Psychophysics
Retinal Gain Control
Rod-Cone Interaction
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv Mechanisms of light adaptation have been traditionally explained with reference to psychophysical experimentation. However, the neural substrata involved in those mechanisms remain to be elucidated. Our study analyzed links between psychophysical measurements and retinal physiological evidence with consideration for the phenomena of rod-cone interactions, photon noise, and spatial summation. Threshold test luminances were obtained with steady background fields at mesopic and photopic light levels (i.e., 0.06-110 cd/m2) for retinal eccentricities from 0° to 15° using three combinations of background/test field sizes (i.e., 10°/2°, 10°/0.45°, and 1°/0.45°). A two-channel Maxwellian view optical system was employed to eliminate pupil effects on the measured thresholds. A model based on visual mechanisms that were described in the literature was optimized to fit the measured luminance thresholds in all experimental conditions. Our results can be described by a combination of visual mechanisms. We determined how spatial summation changed with eccentricity and how subtractive adaptation changed with eccentricity and background field size. According to our model, photon noise plays a significant role to explain contrast detection thresholds measured with the 1/0.45° background/test size combination at mesopic luminances and at off-axis eccentricities. In these conditions, our data reflect the presence of rod-cone interaction for eccentricities between 6° and 9° and luminances between 0.6 and 5 cd/m2. In spite of the increasing noise effects with eccentricity, results also show that the visual system tends to maintain a constant signal-to-noise ratio in the off-axis detection task over the whole mesopic range.
Fil: Gloriani, Alejandro H.. Universidad de Valladolid; España
Fil: Matesanz, Beatriz M.. Universidad de Valladolid; España
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
Fil: Arranz, Isabel. Universidad de Valladolid; España
Fil: Issolio, Luis Alberto. 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
Fil: Mar, Santiago. Universidad de Valladolid; España
Fil: Aparicio, Juan A.. Universidad de Valladolid; España
description Mechanisms of light adaptation have been traditionally explained with reference to psychophysical experimentation. However, the neural substrata involved in those mechanisms remain to be elucidated. Our study analyzed links between psychophysical measurements and retinal physiological evidence with consideration for the phenomena of rod-cone interactions, photon noise, and spatial summation. Threshold test luminances were obtained with steady background fields at mesopic and photopic light levels (i.e., 0.06-110 cd/m2) for retinal eccentricities from 0° to 15° using three combinations of background/test field sizes (i.e., 10°/2°, 10°/0.45°, and 1°/0.45°). A two-channel Maxwellian view optical system was employed to eliminate pupil effects on the measured thresholds. A model based on visual mechanisms that were described in the literature was optimized to fit the measured luminance thresholds in all experimental conditions. Our results can be described by a combination of visual mechanisms. We determined how spatial summation changed with eccentricity and how subtractive adaptation changed with eccentricity and background field size. According to our model, photon noise plays a significant role to explain contrast detection thresholds measured with the 1/0.45° background/test size combination at mesopic luminances and at off-axis eccentricities. In these conditions, our data reflect the presence of rod-cone interaction for eccentricities between 6° and 9° and luminances between 0.6 and 5 cd/m2. In spite of the increasing noise effects with eccentricity, results also show that the visual system tends to maintain a constant signal-to-noise ratio in the off-axis detection task over the whole mesopic range.
publishDate 2016
dc.date.none.fl_str_mv 2016-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/60700
Gloriani, Alejandro H.; Matesanz, Beatriz M.; Barrionuevo, Pablo Alejandro; Arranz, Isabel; Issolio, Luis Alberto; et al.; Influence of background size, luminance and eccentricity on different adaptation mechanisms; Pergamon-Elsevier Science Ltd; Vision Research; 125; 8-2016; 12-22
0042-6989
CONICET Digital
CONICET
url http://hdl.handle.net/11336/60700
identifier_str_mv Gloriani, Alejandro H.; Matesanz, Beatriz M.; Barrionuevo, Pablo Alejandro; Arranz, Isabel; Issolio, Luis Alberto; et al.; Influence of background size, luminance and eccentricity on different adaptation mechanisms; Pergamon-Elsevier Science Ltd; Vision Research; 125; 8-2016; 12-22
0042-6989
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://www.sciencedirect.com/science/article/pii/S004269891630027X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.visres.2016.04.008
info:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4955780/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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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