Effect of stimulus intensity on the sizes of chromatic perceptive fields
The effects of intensity on chromatic perceptive field size were investigated along the horizontal meridian at 10 degrees temporal eccentricity by manipulating stimulus intensity from 0.3 to 3.3 log trolands. Following light adaptation, observers described the hue and saturation of monochromatic sti...
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Veröffentlicht in: | Journal of the Optical Society of America. A, Optics, image science, and vision Optics, image science, and vision, 2005-10, Vol.22 (10), p.2137-2142 |
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creator | TROUP, Lucy J PITTS, Michael A VOLBRECHT, Vicki J NERGER, Janice L |
description | The effects of intensity on chromatic perceptive field size were investigated along the horizontal meridian at 10 degrees temporal eccentricity by manipulating stimulus intensity from 0.3 to 3.3 log trolands. Following light adaptation, observers described the hue and saturation of monochromatic stimuli (440-660 nm, in 10 nm steps) for a series of test sizes (0.098-3 degrees) presented along the time period associated with the cone plateau of the dark-adaptation function. Perceptive field sizes of the four elemental hues (red, green, yellow, and blue) and the saturation component were estimated by three observers at each intensity level for each wavelength. In general, perceptive field sizes of blue and red are the smallest, and yellow and green are the largest. Furthermore, perceptive field sizes of all four hues decrease with increasing stimulus intensity, though the absolute change is largest for green and yellow. The decrease in size with increase in intensity cannot be completely explained in terms of saturation or rod signals and is likely, then, attributable to a cone-based mechanism. |
doi_str_mv | 10.1364/JOSAA.22.002137 |
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Following light adaptation, observers described the hue and saturation of monochromatic stimuli (440-660 nm, in 10 nm steps) for a series of test sizes (0.098-3 degrees) presented along the time period associated with the cone plateau of the dark-adaptation function. Perceptive field sizes of the four elemental hues (red, green, yellow, and blue) and the saturation component were estimated by three observers at each intensity level for each wavelength. In general, perceptive field sizes of blue and red are the smallest, and yellow and green are the largest. Furthermore, perceptive field sizes of all four hues decrease with increasing stimulus intensity, though the absolute change is largest for green and yellow. 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A, Optics, image science, and vision</title><addtitle>J Opt Soc Am A Opt Image Sci Vis</addtitle><description>The effects of intensity on chromatic perceptive field size were investigated along the horizontal meridian at 10 degrees temporal eccentricity by manipulating stimulus intensity from 0.3 to 3.3 log trolands. Following light adaptation, observers described the hue and saturation of monochromatic stimuli (440-660 nm, in 10 nm steps) for a series of test sizes (0.098-3 degrees) presented along the time period associated with the cone plateau of the dark-adaptation function. Perceptive field sizes of the four elemental hues (red, green, yellow, and blue) and the saturation component were estimated by three observers at each intensity level for each wavelength. In general, perceptive field sizes of blue and red are the smallest, and yellow and green are the largest. Furthermore, perceptive field sizes of all four hues decrease with increasing stimulus intensity, though the absolute change is largest for green and yellow. The decrease in size with increase in intensity cannot be completely explained in terms of saturation or rod signals and is likely, then, attributable to a cone-based mechanism.</description><subject>Adaptation, Ocular - physiology</subject><subject>Adaptation, Ocular - radiation effects</subject><subject>Adult</subject><subject>Biological and medical sciences</subject><subject>Color Perception - physiology</subject><subject>Color Perception - radiation effects</subject><subject>Contrast Sensitivity - physiology</subject><subject>Contrast Sensitivity - radiation effects</subject><subject>Discrimination Learning - physiology</subject><subject>Discrimination Learning - radiation effects</subject><subject>Dose-Response Relationship, Radiation</subject><subject>Eye and associated structures. Visual pathways and centers. Vision</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>Light</subject><subject>Male</subject><subject>Pattern Recognition, Visual - physiology</subject><subject>Photic Stimulation - methods</subject><subject>Physiological optics</subject><subject>Radiation Dosage</subject><subject>Sensory Thresholds - physiology</subject><subject>Sensory Thresholds - radiation effects</subject><subject>Vertebrates: nervous system and sense organs</subject><subject>Visual Fields - physiology</subject><subject>Visual Fields - radiation effects</subject><issn>1084-7529</issn><issn>1520-8532</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkDtLA0EUhQdRTIzWdjKN5W7msfPYMoRolEAKtV7mSUb2xc5EiL_ejQmkuqf4zuHyAfCIUY4pL-bv24_FIickR4hgKq7AFDOCMskouR4zkkUmGCkn4C7Gb4RQwaW4BRPMiRBE0ilYr7x3JsHOw5hCs6_3EYY2uTaGdIBdC9POwRh-XTwiZjd0jUrBwN4NxvUp_Djog6ttvAc3XtXRPZzvDHy9rD6X62yzfX1bLjaZoYSlrFBeCM11yZhFlGusKcfclpw5bCVFXCFJSyuVRFh57RzBBkmuJSu5xLagMzA_7Zqhi3FwvuqH0KjhUGFUHZ1U_04qQqqTk7HxdGr0e904e-HPEkbg-QyoaFTtB9WaEC-cwONfI_gHddlpWg</recordid><startdate>20051001</startdate><enddate>20051001</enddate><creator>TROUP, Lucy J</creator><creator>PITTS, Michael A</creator><creator>VOLBRECHT, Vicki J</creator><creator>NERGER, Janice L</creator><general>Optical Society of America</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20051001</creationdate><title>Effect of stimulus intensity on the sizes of chromatic perceptive fields</title><author>TROUP, Lucy J ; PITTS, Michael A ; VOLBRECHT, Vicki J ; NERGER, Janice L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-4af77b6b955d036b1b3616d965e1d8306a0839d8a801afbee21c086b859681d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Adaptation, Ocular - physiology</topic><topic>Adaptation, Ocular - radiation effects</topic><topic>Adult</topic><topic>Biological and medical sciences</topic><topic>Color Perception - physiology</topic><topic>Color Perception - radiation effects</topic><topic>Contrast Sensitivity - physiology</topic><topic>Contrast Sensitivity - radiation effects</topic><topic>Discrimination Learning - physiology</topic><topic>Discrimination Learning - radiation effects</topic><topic>Dose-Response Relationship, Radiation</topic><topic>Eye and associated structures. Visual pathways and centers. Vision</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Humans</topic><topic>Light</topic><topic>Male</topic><topic>Pattern Recognition, Visual - physiology</topic><topic>Photic Stimulation - methods</topic><topic>Physiological optics</topic><topic>Radiation Dosage</topic><topic>Sensory Thresholds - physiology</topic><topic>Sensory Thresholds - radiation effects</topic><topic>Vertebrates: nervous system and sense organs</topic><topic>Visual Fields - physiology</topic><topic>Visual Fields - radiation effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>TROUP, Lucy J</creatorcontrib><creatorcontrib>PITTS, Michael A</creatorcontrib><creatorcontrib>VOLBRECHT, Vicki J</creatorcontrib><creatorcontrib>NERGER, Janice L</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Journal of the Optical Society of America. A, Optics, image science, and vision</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>TROUP, Lucy J</au><au>PITTS, Michael A</au><au>VOLBRECHT, Vicki J</au><au>NERGER, Janice L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of stimulus intensity on the sizes of chromatic perceptive fields</atitle><jtitle>Journal of the Optical Society of America. A, Optics, image science, and vision</jtitle><addtitle>J Opt Soc Am A Opt Image Sci Vis</addtitle><date>2005-10-01</date><risdate>2005</risdate><volume>22</volume><issue>10</issue><spage>2137</spage><epage>2142</epage><pages>2137-2142</pages><issn>1084-7529</issn><eissn>1520-8532</eissn><abstract>The effects of intensity on chromatic perceptive field size were investigated along the horizontal meridian at 10 degrees temporal eccentricity by manipulating stimulus intensity from 0.3 to 3.3 log trolands. Following light adaptation, observers described the hue and saturation of monochromatic stimuli (440-660 nm, in 10 nm steps) for a series of test sizes (0.098-3 degrees) presented along the time period associated with the cone plateau of the dark-adaptation function. Perceptive field sizes of the four elemental hues (red, green, yellow, and blue) and the saturation component were estimated by three observers at each intensity level for each wavelength. In general, perceptive field sizes of blue and red are the smallest, and yellow and green are the largest. Furthermore, perceptive field sizes of all four hues decrease with increasing stimulus intensity, though the absolute change is largest for green and yellow. The decrease in size with increase in intensity cannot be completely explained in terms of saturation or rod signals and is likely, then, attributable to a cone-based mechanism.</abstract><cop>Washington, DC</cop><pub>Optical Society of America</pub><pmid>16277283</pmid><doi>10.1364/JOSAA.22.002137</doi><tpages>6</tpages></addata></record> |
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subjects | Adaptation, Ocular - physiology Adaptation, Ocular - radiation effects Adult Biological and medical sciences Color Perception - physiology Color Perception - radiation effects Contrast Sensitivity - physiology Contrast Sensitivity - radiation effects Discrimination Learning - physiology Discrimination Learning - radiation effects Dose-Response Relationship, Radiation Eye and associated structures. Visual pathways and centers. Vision Female Fundamental and applied biological sciences. Psychology Humans Light Male Pattern Recognition, Visual - physiology Photic Stimulation - methods Physiological optics Radiation Dosage Sensory Thresholds - physiology Sensory Thresholds - radiation effects Vertebrates: nervous system and sense organs Visual Fields - physiology Visual Fields - radiation effects |
title | Effect of stimulus intensity on the sizes of chromatic perceptive fields |
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