{"id":35114,"date":"2026-06-26T11:10:05","date_gmt":"2026-06-26T16:10:05","guid":{"rendered":"https:\/\/www.sr-research.com\/?page_id=35114"},"modified":"2026-06-26T11:10:06","modified_gmt":"2026-06-26T16:10:06","slug":"eye-tracking-the-effects-of-fine-particle-matter","status":"publish","type":"page","link":"https:\/\/www.sr-research.com\/zh\/case-studies\/eye-tracking-the-effects-of-fine-particle-matter\/","title":{"rendered":"Eye Tracking the Effects of Fine Particle Matter"},"content":{"rendered":"<style>.wp-block-kadence-column.kb-section-dir-horizontal > .kt-inside-inner-col > .kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-link-wrap{max-width:unset;}.kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-link-wrap{border-top:0px solid #ffffff;border-right:0px solid #ffffff;border-bottom:0px solid #ffffff;border-left:0px solid #ffffff;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;background:#ffffff;padding-top:0px;padding-right:var(--global-kb-spacing-xs, 1rem);padding-bottom:var(--global-kb-spacing-xs, 1rem);padding-left:var(--global-kb-spacing-xs, 1rem);}.kt-info-box35114_3cb6a5-ed .kadence-info-box-icon-container .kt-info-svg-icon, .kt-info-box35114_3cb6a5-ed .kt-info-svg-icon-flip, .kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-number{font-size:50px;}.kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-media{color:#006cff;border-radius:200px;overflow:hidden;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;padding-top:20px;padding-right:20px;padding-bottom:20px;padding-left:20px;margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:-40px;}.kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-media .kadence-info-box-image-intrisic img{border-radius:200px;}.kt-info-box35114_3cb6a5-ed .kt-infobox-textcontent h2.kt-blocks-info-box-title{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;margin-top:5px;margin-right:0px;margin-bottom:10px;margin-left:0px;}.kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-learnmore{background:transparent;border-width:0px 0px 0px 0px;padding-top:4px;padding-right:8px;padding-bottom:4px;padding-left:8px;margin-top:10px;margin-right:0px;margin-bottom:10px;margin-left:0px;}@media all and (max-width: 1024px){.kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-link-wrap{border-top:0px solid #ffffff;border-right:0px solid #ffffff;border-bottom:0px solid #ffffff;border-left:0px solid #ffffff;}}@media all and (max-width: 767px){.kt-info-box35114_3cb6a5-ed .kt-blocks-info-box-link-wrap{border-top:0px solid #ffffff;border-right:0px solid #ffffff;border-bottom:0px solid #ffffff;border-left:0px solid #ffffff;}}<\/style>\n<div class=\"wp-block-kadence-infobox kt-info-box35114_3cb6a5-ed\"><span class=\"kt-blocks-info-box-link-wrap info-box-link kt-blocks-info-box-media-align-left kt-info-halign-left\"><div class=\"kt-blocks-info-box-media-container\"><div class=\"kt-blocks-info-box-media kt-info-media-animate-none\"><div class=\"kadence-info-box-icon-container kt-info-icon-animate-none\"><div class=\"kadence-info-box-icon-inner-container\"><span class=\"kb-svg-icon-wrap kb-svg-icon-fe_bookOpen kt-info-svg-icon\"><svg viewBox=\"0 0 24 24\"  fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"  aria-hidden=\"true\"><path d=\"M2 3h6a4 4 0 0 1 4 4v14a3 3 0 0 0-3-3H2z\"\/><path d=\"M22 3h-6a4 4 0 0 0-4 4v14a3 3 0 0 1 3-3h7z\"\/><\/svg><\/span><\/div><\/div><\/div><\/div><div class=\"kt-infobox-textcontent\"><h2 class=\"kt-blocks-info-box-title\">Case Study: Unlocking Early Markers of Neurodegeneration via Eye Tracking<\/h2><p class=\"kt-blocks-info-box-text\"><\/p><\/div><\/span><\/div>\n\n\n<style>.kb-image35114_a079e7-20 .kb-image-has-overlay:after{opacity:0.3;}.kb-image35114_a079e7-20 img.kb-img, .kb-image35114_a079e7-20 .kb-img img{box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image35114_a079e7-20\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"800\" src=\"https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0.jpg\" alt=\"Pollution, Eye Tracking, Eye Tracker, Study\" class=\"kb-img wp-image-35117\" srcset=\"https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0-18x6.jpg 18w, https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0-300x94.jpg 300w, https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0-768x240.jpg 768w, https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0-1024x320.jpg 1024w, https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0-1536x480.jpg 1536w, https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0-2048x640.jpg 2048w, https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0.jpg 2560w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/figure><\/div>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-35114_f4a61a-2a .kt-block-spacer{height:40px;}.wp-block-kadence-spacer.kt-block-spacer-35114_f4a61a-2a .kt-divider{border-top-width:1px;height:1px;border-top-color:#ffffff;width:80%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-35114_f4a61a-2a\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Chronic exposure to fine particulate matter (PM<sub>2.5<\/sub>) is a well-established driver of systemic neuroinflammation. In highly polluted metropolises like Metropolitan Mexico City (MMC), citizens are exposed to pollutant concentrations far exceeding annual safety standards from the time they are in utero. Forensic and imaging data reveal that this severe air pollution triggers early neural proteinopathies (associated with Alzheimer&#8217;s and Parkinson&#8217;s diseases) and targeted brain atrophy in young, seemingly healthy individuals. However, detecting these neurodegenerative processes <em>before<\/em> clinical cognitive deficits manifest remains a diagnostic challenge.<\/p>\n\n\n\n<h2 id=\"h-measuring-oculomotor-abnormalities-in-polluted-cities\" class=\"wp-block-heading\">Measuring Oculomotor Abnormalities in Polluted Cities<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In their prospective study, <a href=\"https:\/\/www.frontiersin.org\/journals\/neurology\/articles\/10.3389\/fneur.2026.1772916\/full\"><strong>Lilian Calder\u00f3n-Garcidue\u00f1as and her colleagues (2026<\/strong>)<\/a>&nbsp;explored whether non-invasive eye-tracking metrics could expose early subclinical neurodegeneration. The study evaluated 80 clinically healthy volunteers from MMC and Cuernavaca , with 45 MMC participants also receiving high-resolution structural T1-weighted brain MRIs. It is important to note that while MMC residents are exposed to over 10 times higher concentrations of PM<sub>2.5<\/sub> compared to those from Cuernavaca, the levels in Cuernavaca still exceed levels considered to be safe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To capture potentially subtle alterations in eye movement function, and allow testing to be undertaken in multiple locations, the researchers used an SR Research <strong><a href=\"https:\/\/www.sr-research.com\/eyelink-portable-duo\/\">EyeLink Portable Duo<\/a><\/strong> eye tracker.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Participants completed five distinct oculomotor tasks including fixation stability, smooth pursuit, and gap, step, and overlap prosaccade\/antisaccade variants. The EyeLink Portable Duo was used to record from both eyes a sampling rate of 1000 Hz, allowing a very detailed analysis of oculomotor function<\/p>\n\n\n\n<h2 id=\"h-high-exposure-oculomotor-abnormalities\" class=\"wp-block-heading\">High Exposure Oculomotor Abnormalities<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">While most oculomotor measures were equivalent across the MMC and Cuernavaca cohorts, a more nuanced analysis revealed some striking oculomotor abnormalities in highly exposed MMC residents.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fixation Instability:<\/strong> Intrusive saccades, including Square Wave Jerks (SWJs) were highly prominent in pollution-exposed youth\u2014such as a 14-year-old girl displaying 156 intrusive saccades during basic central target fixation.<\/li>\n\n\n\n<li><strong>Smooth Pursuit Impairments:<\/strong> MMC residents frequently demonstrated abnormal antisaccade control (inhibitory control failures) and low-gain smooth pursuit containing large numbers of saccadic intrusions.<\/li>\n\n\n\n<li><strong>MRI Brain Atrophy Correlations:<\/strong> Crucially, these, and other oculomotor metrics strongly correlated with structural brain deterioration. For example, longer saccadic latencies or poor pursuit tracking mapped directly onto volume losses in executive control and memory regions, including the fronto-temporo-parietal cortices, hippocampus, amygdala, thalamus, and cerebellum.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-portable-oculomotor-test-batteries\" class=\"wp-block-heading\">Portable Oculomotor Test Batteries <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This research demonstrates the potential that compact, easy to administer oculomotor test batteries have as a non-invasive tool to screen, monitor, and measure the progressive impact of environmental pollution on neurodevelopment and early neurodegeneration. In the researcher\u2019s own words: &#8220;&#8230;neurodegenerative disorders that result in early focal, and latter diffuse pathology, commonly manifest eye movement abnormalities, creating a window not only to the brain, but also to pathological processes that affect it.&#8221;<\/p>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-35114_26103a-2f .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-35114_26103a-2f .kt-divider{border-top-width:1px;height:1px;border-top-color:#eee;width:50%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-35114_26103a-2f\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading35114_021682-43, .wp-block-kadence-advancedheading.kt-adv-heading35114_021682-43[data-kb-block=\"kb-adv-heading35114_021682-43\"]{text-align:center;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading35114_021682-43 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading35114_021682-43[data-kb-block=\"kb-adv-heading35114_021682-43\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading35114_021682-43 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading35114_021682-43[data-kb-block=\"kb-adv-heading35114_021682-43\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading35114_021682-43 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading35114_021682-43\">For information regarding how eye tracking can help your research, check out our solutions and product pages or contact us. We are happy to help!<\/p>\n\n\n<div class=\"mai-columns has-xl-margin-top has-xl-margin-bottom\"><div class=\"mai-columns-wrap has-columns\" style=\"--column-gap:var(--spacing-xxxxl);--row-gap:var(--spacing-xl);--align-columns:start;--align-columns-vertical:initial;\">\n<div class=\"mai-column is-column\" style=\"--columns-xs:1\/1;--flex-xs:0 0 var(--flex-basis);--columns-sm:1\/1;--flex-sm:0 0 var(--flex-basis);--columns-md:1\/3;--flex-md:0 0 var(--flex-basis);--columns-lg:1\/3;--flex-lg:0 0 var(--flex-basis);--justify-content:start;\">\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link button button-secondary wp-element-button\" href=\"https:\/\/www.sr-research.com\/solutions\/\">Solutions<\/a><\/div>\n<\/div>\n\n<\/div>\n\n<div class=\"mai-column is-column\" style=\"--columns-xs:1\/1;--flex-xs:0 0 var(--flex-basis);--columns-sm:1\/1;--flex-sm:0 0 var(--flex-basis);--columns-md:1\/3;--flex-md:0 0 var(--flex-basis);--columns-lg:1\/3;--flex-lg:0 0 var(--flex-basis);--justify-content:start;\">\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link button button-secondary wp-element-button\" href=\"https:\/\/www.sr-research.com\/hardware\/\">Products<\/a><\/div>\n<\/div>\n\n<\/div>\n\n<div class=\"mai-column is-column\" style=\"--columns-xs:1\/1;--flex-xs:0 0 var(--flex-basis);--columns-sm:1\/1;--flex-sm:0 0 var(--flex-basis);--columns-md:1\/3;--flex-md:0 0 var(--flex-basis);--columns-lg:1\/3;--flex-lg:0 0 var(--flex-basis);--justify-content:start;\">\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link button button-secondary wp-element-button\" href=\"https:\/\/www.sr-research.com\/get-in-touch\/\">Get in Touch<\/a><\/div>\n<\/div>\n\n<\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Chronic exposure to fine particulate matter (PM2.5) is a well-established driver of systemic neuroinflammation. In highly polluted metropolises like Metropolitan Mexico City (MMC), citizens are exposed to pollutant concentrations far exceeding annual safety standards from the time they are in utero. Forensic and imaging data reveal that this severe air pollution triggers early neural proteinopathies &hellip;<\/p>","protected":false},"author":3,"featured_media":0,"parent":30161,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"class_list":["page","type-page","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Eye Tracking the Effects of Fine Particle Matter - Fast, Accurate, Reliable Eye Tracking<\/title>\n<meta name=\"description\" content=\"The study uncovers the relationship between pollution and eye health using eye-tracking technology in research.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sr-research.com\/zh\/case-studies\/eye-tracking-the-effects-of-fine-particle-matter\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Eye Tracking the Effects of Fine Particle Matter\" \/>\n<meta property=\"og:description\" content=\"The study uncovers the relationship between pollution and eye health using eye-tracking technology in research.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sr-research.com\/zh\/case-studies\/eye-tracking-the-effects-of-fine-particle-matter\/\" \/>\n<meta property=\"og:site_name\" content=\"Fast, Accurate, Reliable Eye Tracking\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SR-Research-Ltd-640093842854433\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-26T16:10:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/06\/pollution-eye-tracking-3.0.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@SRResearchLtd\" \/>\n<meta name=\"twitter:label1\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.sr-research.com\\\/case-studies\\\/eye-tracking-the-effects-of-fine-particle-matter\\\/\",\"url\":\"https:\\\/\\\/www.sr-research.com\\\/case-studies\\\/eye-tracking-the-effects-of-fine-particle-matter\\\/\",\"name\":\"Eye Tracking the Effects of Fine Particle Matter - 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