nih-gov/www.nei.nih.gov/espanol/node/3133
2025-02-26 13:17:41 -05:00

558 lines
24 KiB
Text
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html>
<html lang="es" dir="ltr">
<head>
<meta charset="utf-8" />
<meta name="description" content="The key components of electrical connections between light receptors in the eye and the impact of these connections on the early steps of visual signal processing have been identified for the first time." />
<meta name="keywords" content="Neuroscience,Retina,Regenerative Medicine" />
<meta name="google" content="vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw" />
<meta name="google-site-verification" content="vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw" />
<meta name="google-site-verification" content="lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw" />
<meta name="google-site-verification" content="UDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script type="application/ld+json">{
"@context": "https://schema.org",
"@graph": [
{
"@type": "NewsArticle",
"@id": "https://www.nei.nih.gov/about/news-and-events/news/researchers-uncover-critical-early-step-visual-process",
"name": "Researchers uncover a critical early step of the visual process",
"headline": "Researchers uncover a critical early step of the visual process",
"image": {
"@type": "ImageObject",
"representativeOfPage": "False",
"url": "https://www.nei.nih.gov/sites/default/files/styles/medium/public/news/rods-and-cones_news_1.jpg?itok=TLxlcNnj",
"width": "250",
"height": "220"
},
"datePublished": "2020-07-08T09:23:25-0400",
"dateModified": "2025-02-11T11:52:59-0500",
"author": {
"@type": "GovernmentOrganization",
"@id": "https://www.nei.nih.gov/about/news-and-events/news/researchers-uncover-critical-early-step-visual-process",
"name": "National Eye Institute",
"url": "https://www.nei.nih.gov"
},
"publisher": {
"@type": "GovernmentOrganization",
"@id": "https://www.nei.nih.gov/about/news-and-events/news/researchers-uncover-critical-early-step-visual-process",
"name": "National Eye Institute",
"url": "https://www.nei.nih.gov"
}
},
{
"@type": "WebPage",
"@id": "https://www.nei.nih.gov/about/news-and-events/news/researchers-uncover-critical-early-step-visual-process",
"breadcrumb": {
"@type": "BreadcrumbList",
"itemListElement": [
{
"@type": "ListItem",
"position": 1,
"name": "Home",
"item": "https://www.nei.nih.gov/espanol"
},
{
"@type": "ListItem",
"position": 2,
"name": "Researchers uncover a critical early step of the visual process",
"item": "https://www.nei.nih.gov/espanol/node/3133"
}
]
},
"author": {
"@type": "GovernmentOrganization",
"@id": "https://www.nei.nih.gov",
"name": "National Eye Institute",
"url": "https://www.nei.nih.gov"
},
"publisher": {
"@type": "GovernmentOrganization",
"@id": "https://www.nei.nih.gov",
"name": "National Eye Institute",
"url": "https://www.nei.nih.gov"
}
}
]
}</script>
<link rel="icon" type="image/png" href="/themes/custom/nei/images/favicon.png" />
<link rel="apple-touch-icon" href="/themes/custom/nei/images/apple-touch-icon.png" />
<meta name="last-updated" content="Feb 11, 2025, 11:52:59 AM" />
<link rel="icon" href="/themes/custom/nei/favicon.ico" type="image/vnd.microsoft.icon" />
<link rel="alternate" hreflang="en" href="https://www.nei.nih.gov/about/news-and-events/news/researchers-uncover-critical-early-step-visual-process" />
<link rel="canonical" href="https://www.nei.nih.gov/about/news-and-events/news/researchers-uncover-critical-early-step-visual-process" />
<link rel="shortlink" href="https://www.nei.nih.gov/node/3133" />
<title>Researchers uncover a critical early step of the visual process | National Eye Institute</title>
<link rel="preload" href="/themes/custom/nei/fonts/Aleo-Bold.woff2" as="font" type="font/woff2" crossorigin>
<link rel="preload" href="/themes/custom/nei/fonts/Lato-Regular.woff2" as="font" type="font/woff2" crossorigin>
<link rel="stylesheet" media="all" href="/sites/default/files/css/css_PGSk_7b88hq2qr_--_38MLvoj1ffr9jv3JhnNJTnKUM.css?delta=0&amp;language=es&amp;theme=nei&amp;include=eJw1ytEKgCAMRuEXsnwk-dMxrOliTqi3j4iuDnycfFCprpbyHK4tDb-FRvwSshrFYvOErNhxBUHnCaYEcbJ_61Qji26Q5ZXa-QH_YCJ9" />
<link rel="stylesheet" media="all" href="/themes/custom/nei/css/style.css?sraguf" />
<script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","pathPrefix":"espanol\/","currentPath":"node\/3133","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"es"},"pluralDelimiter":"\u0003","gtag":{"tagId":"","consentMode":false,"otherIds":[],"events":[],"additionalConfigInfo":[]},"suppressDeprecationErrors":true,"ajaxPageState":{"libraries":"eJxdjFsOwjAMBC8U6iNFbmKZgPNQ7BTK6SmgCsrPrndkTbhSTFa7D0OtZq-2Cil8yoWOj5WYYT8c18pC3pCBt_jfE17wfoTZCRYeyORRjPruLmhpIS-b2EvFmArD73CFErDUGeWkoadmekCb5fXVsCN3bGeF2EdDmb5kGqWNWZKeKTpd1SjDjEpuSXRTeOeUaxxCT9WYZ50","theme":"nei","theme_token":null},"ajaxTrustedUrl":{"form_action_p_pvdeGsVG5zNF_XLGPTvYSKCf43t8qZYSwcfZl2uzM":true},"gtm":{"tagId":null,"settings":{"data_layer":"dataLayer","include_classes":false,"allowlist_classes":"google\nnonGooglePixels\nnonGoogleScripts\nnonGoogleIframes","blocklist_classes":"customScripts\ncustomPixels","include_environment":false,"environment_id":"","environment_token":""},"tagIds":["GTM-TLVNS7W"]},"user":{"uid":0,"permissionsHash":"c48594e108b5c1c2bea409821b71477d5bc2724c8cae6d31f1d985af0daab85c"}}</script>
<script src="/sites/default/files/js/js_WgzMsgqb-MiW-Z2aLffGQHepZwX2hWrEHSrb46WqZrk.js?scope=header&amp;delta=0&amp;language=es&amp;theme=nei&amp;include=eJxdjEEOgCAMBD-E9kmkYrOpqdQAMerr5eBBvUx29jCp8HUKQOkZAe4wiY1B6Pj7yAsf33MNmZvuEq0nojnPmkFvCVmUYD6xDTUV3Vq9ATUbLxk"></script>
<script src="https://script.crazyegg.com/pages/scripts/0117/6571.js" async></script>
<script src="/modules/contrib/google_tag/js/gtag.js?sraguf"></script>
<script src="/modules/contrib/google_tag/js/gtm.js?sraguf"></script>
</head>
<body class="t-news_item t-node__3133 path-node-3133">
<a href="#main-content" class="u-skip-link">
Skip to content
</a>
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-TLVNS7W"
height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas>
<div id="u-page-outer" class="u-outer">
<div class="views-element-container site-notice-block" id="block-views-block-site-notices-block-1">
<div>
<div class="js-view-dom-id-c717f1f4d643416252cd0229ed4908c6c79acdb59bc751b53d1569b9a66ee9d8 site-notices">
</div>
</div>
</div>
<img src="/themes/custom/nei/images/NEI-logo-tagline.svg" alt="" width="200" height="48" class="u-print-only">
<div class="r-global-header">
<div id="r-header-outer" class="r-header">
<div class="r-header-inner">
<div id="block-nei-branding" class="o-block--logo" role="banner">
<div class="o-logo">
<a href="/espanol" class="o-logo__link" title="Home" rel="home"><span class="o-logo__text">National Eye Institute</span> <span class="o-logo__tagline">Research Today&hellip; Vision Tomorrow</span></a>
</div>
</div>
<div id="block-neimenubutton-2">
<div class="o-menu-toggle"><button class="o-menu-toggle__btn" id="menu-toggle__btn" aria-controls="block-mainnavigation" aria-expanded="true">Menú</button></div>
</div>
<div class="language-switcher-language-url has-no-translation" id="block-languageswitcher" role="navigation" aria-label="Language switcher">
<ul class="links">
<li>
<a href="/about/news-and-events/news/researchers-uncover-critical-early-step-visual-process" class="language-link is-active" lang="en" data-drupal-link-system-path="node/3133" aria-current="page">English</a>
</li>
<li class="is-active">
<a href="/espanol/node/3133" class="language-link is-active" lang="es" data-drupal-link-system-path="node/3133" aria-current="page"> Español</a>
</li>
</ul>
</div>
<div class="search-global c-search--global" data-drupal-selector="search-global" id="block-globalsearchform" role="search">
<form action="/espanol/node/3133" method="post" id="search-global" accept-charset="UTF-8">
<div class="c-form__inner">
<div class="js-form-item form-item js-form-type-textfield form-item-global-terms js-form-item-global-terms">
<label for="edit-global-terms">Buscar en la página</label>
<input data-drupal-selector="edit-global-terms" type="text" id="edit-global-terms" name="global-terms" value="" size="30" maxlength="128" placeholder="Buscar en la página" class="form-text" />
</div>
<input data-drupal-selector="form-ba7lwbzpwgpa-ds1lak7u8rxreriexz-97b9ja2wyii" type="hidden" name="form_build_id" value="form-ba7LwBZPWGpA-DS1lAK7u8RxRERiExz-97B9jA2WYiI" />
<input data-drupal-selector="edit-search-global" type="hidden" name="form_id" value="search_global" />
<div data-drupal-selector="edit-global-actions" class="form-actions js-form-wrapper form-wrapper" id="edit-global-actions"><input data-drupal-selector="edit-global-submit" type="submit" id="edit-global-submit" name="op" value="Buscar" class="button js-form-submit form-submit" />
</div>
</div>
</form>
</div>
</div>
</div>
<div class="r-menu-primary">
<nav aria-label="Main navigation" id="block-mainnavigation" class="o-menu-main__outer">
<ul class="o-menu o-menu-main"> <li class="o-menu-main__item o-menu-main__item--expanded o-menu-main__item--no-js"> <a href="/espanol/aprenda-sobre-la-salud-ocular" class="o-menu-main__link" data-drupal-link-system-path="node/39">Aprenda sobre la salud ocular</a>
<ul class="o-menu o-menu-main__submenu"> <li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/aprenda-sobre-la-salud-ocular/vision-saludable" class="o-menu-main__link" data-drupal-link-system-path="node/788">Visión saludable</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/aprenda-sobre-la-salud-ocular/enfermedades-y-afecciones-de-los-ojos" class="o-menu-main__link" data-drupal-link-system-path="learn-about-eye-health/eye-conditions-and-diseases">Enfermedades y afecciones de los ojos</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/aprenda-sobre-la-salud-ocular/datos-y-estadisticas-relacionadas-con-la-salud-ocular" class="o-menu-main__link" data-drupal-link-system-path="node/825">Datos y estadísticas relacionadas con la salud ocular</a>
</li>
<li class="o-menu-main__item"> <a href="/espanol/aprenda-sobre-la-salud-ocular/rehabilitacion-visual" class="o-menu-main__link" data-drupal-link-system-path="node/3865">Rehabilitación visual</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/aprenda-sobre-la-salud-ocular/campanas-de-difusion-y-recursos" class="o-menu-main__link" data-drupal-link-system-path="node/125">Campañas de difusión y recursos</a>
</li>
</ul>
</li>
<li class="o-menu-main__item o-menu-main__item--expanded o-menu-main__item--no-js"> <a href="/espanol/acerca-del-NEI" class="o-menu-main__link" data-drupal-link-system-path="node/275">Acerca del Instituto Nacional del Ojo</a>
<ul class="o-menu-main__submenu o-menu"> <li class="o-menu-main__item"> <a href="/espanol/acerca-del-NEI/planificacion-estrategica-en-el-nei" class="o-menu-main__link" data-drupal-link-system-path="node/2857">Planificación estratégica en el NEI</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/acerca-del-NEI/metas-y-logros" class="o-menu-main__link" data-drupal-link-system-path="node/281">Metas y logros</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/acerca-del-NEI/historia-del-nei" class="o-menu-main__link" data-drupal-link-system-path="node/282">Historia del NEI</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/acerca-del-NEI/lideres-del-instituto-nacional-del-ojo-nei" class="o-menu-main__link" data-drupal-link-system-path="node/415">Líderes del Instituto Nacional del Ojo (NEI)</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/acerca-del-NEI/el-presupuesto-y-el-congreso" class="o-menu-main__link" data-drupal-link-system-path="node/395">El presupuesto y el Congreso</a>
</li>
<li class="o-menu-main__item o-menu-main__item--collapsed"> <a href="/espanol/acerca-del-NEI/comites-asesores" class="o-menu-main__link" data-drupal-link-system-path="node/285">Comités asesores</a>
</li>
<li class="o-menu-main__item"> <a href="/espanol/aprenda-sobre-la-salud-ocular/campanas-de-difusion-y-recursos/programa-nacional-de-educacion-sobre-la-salud-del-ojo" title="National Eye Health Education Program" class="o-menu-main__link" data-drupal-link-system-path="node/265">Programa Nacional de Educación sobre la Salud del Ojo</a>
</li>
<li class="o-menu-main__item"> <a href="/espanol/acerca-del-NEI/done-al-instituto-nacional-del-ojo-nei" class="o-menu-main__link" data-drupal-link-system-path="node/286">Done al Instituto Nacional del Ojo (NEI)</a>
</li>
</ul>
</li>
</ul>
</nav>
</div>
</div>
<div class="o-overlay" aria-hidden="true"></div>
<div class="r-breadcrumb">
<div id="block-nei-breadcrumbs">
<nav aria-label="Breadcrumb">
<ol class="c-breadcrumb">
<li>
<a href="/espanol">Home</a>
</li>
<li>
Researchers uncover a critical early step of the visual process
</li>
</ol>
</nav>
</div>
</div>
<div class="r-page-header">
<div class="o-page-header">
<div id="block-nei-page-title">
<h1>
<span>Researchers uncover a critical early step of the visual process</span>
</h1>
</div>
</div>
</div>
<div class="r-highlighted">
<div data-drupal-messages-fallback class="hidden"></div>
</div>
<div class="r-help">
</div>
<main id="main-content" class="r-main">
<div class="r-pre-content">
</div>
<div class="r-splitter">
<div class="r-content">
<div id="block-nei-content">
<article data-history-node-id="3133" lang="en">
<div>
<div class="c-item__date">
July 8, 2020
</div>
<div class="c-item__tag c-item__tag--topic">
<a href="/about/news-and-events/news?topic=349" hreflang="en">Neuroscience</a>
<a href="/about/news-and-events/news?topic=364" hreflang="en">Regenerative Medicine</a>
<a href="/about/news-and-events/news?topic=7" hreflang="en">Retina</a>
</div>
<div class="c-item__tag c-item__tag--research-type">
<a href="/about/news-and-events/news?research=25" hreflang="en">Basic Research</a>
</div>
<div class="c-item__tag c-item__tag--source">
<a href="/about/news-and-events/news?source=29" hreflang="en">Grantee</a>
</div>
<div class="o-news__content">
<div class="c-text">
<p>The key components of electrical connections between light receptors in the eye and the impact of these connections on the early steps of visual signal processing have been identified for the first time, according to research published in Science Advances by The University of Texas Health Science Center at Houston.</p><p>To understand fully how the light receptors, called photoreceptors, impact the early stages of the process of vision, researchers have traditionally focused their attention on how two key sensory cells rods and cones convert elementary particles of light into electrical signals and how these signals are relayed to the brain through devoted circuits. Rods are used for night vision and cones are used for daytime and color vision. While it has been known for some time that electrical signals can spread between photoreceptors through cell connectors called gap junctions, the nature and function have remained poorly understood.</p>
</div>
<div class="c-link">
<a href="https://www.uth.edu/news/story.htm?id=868a8610-7add-4985-bd35-f313d5def140" class="c-link__link">Read more at UTHealth News</a>
</div>
</div>
</div>
</article>
</div>
</div>
<aside class="r-sidebar" role="complementary">
<div class="views-element-container" id="block-views-block-nei-sidebar-block-1">
<div>
<div class="js-view-dom-id-d940ff966c8b9824e59c3ec5f195e6542ae5c1d3ceeba13c3da88d60f34d2a3d nei-sidebar">
</div>
</div>
</div>
</aside>
</div>
</main>
<div class="r-footer">
<footer class="o-footer" role="contentinfo">
<div id="block-footer-2">
<div class="o-footer__row">
<div class="o-footer__group o-footer__group--logo"><a class="o-logo__link" href="/" rel="home" title="Home"><span class="o-logo__text">National Eye Institute</span></a>
<ul class="o-menu-social">
<li class="o-menu-social__item"><a class="o-menu-social__link o-menu-social__link--facebook outlink-ignore" href="https://www.facebook.com/NationalEyeInstitute">Facebook</a></li>
<li class="o-menu-social__item"><a class="o-menu-social__link o-menu-social__link--twitter outlink-ignore" href="https://twitter.com/NatEyeInstitute">Twitter</a></li>
<li class="o-menu-social__item"><a class="o-menu-social__link o-menu-social__link--linkedin outlink-ignore" href="https://www.linkedin.com/company/national-eye-institute-nei">LinkedIn</a></li>
<li class="o-menu-social__item"><a class="o-menu-social__link o-menu-social__link--youtube outlink-ignore" href="https://www.youtube.com/user/neinih">YouTube</a></li>
</ul>
<p>&nbsp;</p>
</div>
<div class="o-footer__group o-footer__group--contact">
<h2 class="o-footer__title">Contactenos NEI</h2>
<ul class="o-menu-footer">
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="/espanol/contactenos">Contáctenos</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://www.nih.gov/about-nih/visitor-information">Visite a los NIH (en inglés)</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://list.nih.gov/cgi-bin/wa.exe?SUBED1=insidenei&amp;A=1">Reciba actualizaciones del NEI a través del correo electrónico (en inglés)</a></li>
</ul>
</div>
<div class="o-footer__group o-footer__group--policies">
<h2 class="o-footer__title">Politicas</h2>
<ul class="o-menu-footer">
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="/espanol/informacion-sobre-accesibilidad">Accesibilidad</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://www.nih.gov/nondiscrimination-notice-language-assistance-services#spanish">Información en otros idiomas</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="/espanol/ley-de-libertad-de-informacion-foia">Política de privacidad</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="/espanol/ley-de-libertad-de-informacion-foia">Ley de Libertad de Información (FOIA)</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="/espanol/descargo-de-responsabilidades">Descargo de responsabilidades</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="/espanol/politicas-de-la-pagina-web">Políticas de la página web</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html ">Declaración sobre vulnerabilidad (en inglés)</a></li>
</ul>
</div>
<div class="o-footer__group o-footer__group--employees">
<h2 class="o-footer__title">Para los empleados de NEI</h2>
<ul class="o-menu-footer">
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://intranet.nei.nih.gov">Intranet</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://intranet.nei.nih.gov/hr/Pages/emergency.aspx">Información de emergencia</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://ned.nih.gov/search/search.aspx">Directorio de los funcionarios del NEI</a></li>
</ul>
</div>
</div>
<div class="o-footer__row">
<div class="o-footer__full o-footer__full--parent">
<ul class="o-menu-footer o-menu-footer--swing">
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://www.nih.gov/">NIH.gov</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://hhs.gov/">HHS.gov</a></li>
<li class="o-menu-footer__item"><a class="o-menu-footer__link" href="https://usa.gov/">USA.gov</a></li>
</ul>
</div>
</div>
</div>
</footer>
</div>
</div>
</div>
<div class="c-lb-wrapper" id="lb-wrapper" aria-hidden="true">
<div class="c-lb-overlay" tabindex="-1"></div>
<div role="dialog" class="c-lb" id="lb">
<div class="c-lb-header">
<button class="c-lb-close-btn"><span class="c-lb-close-btn-text">Close</span><span class="c-lb-close-btn-text times" aria-hidden="true">&times;</span></button>
</div>
<figure class="c-lb-figure">
<figcaption class="c-lb-caption"></figcaption>
</figure>
</div>
</div>
<script src="/sites/default/files/js/js_P5UBl7ML5jj6dp4P_zp1vfnURYj58JsfQMLHLuwiELA.js?scope=footer&amp;delta=0&amp;language=es&amp;theme=nei&amp;include=eJxdjEEOgCAMBD-E9kmkYrOpqdQAMerr5eBBvUx29jCp8HUKQOkZAe4wiY1B6Pj7yAsf33MNmZvuEq0nojnPmkFvCVmUYD6xDTUV3Vq9ATUbLxk"></script>
<script src="/themes/custom/nei/js/scripts.js?sraguf"></script>
</body>
</html>