{"id":35200,"date":"2026-07-23T14:46:57","date_gmt":"2026-07-23T19:46:57","guid":{"rendered":"https:\/\/www.sr-research.com\/?page_id=35200"},"modified":"2026-07-24T15:29:38","modified_gmt":"2026-07-24T20:29:38","slug":"eye-tracking-video-and-subtitles-to-an-audio-lesson","status":"publish","type":"page","link":"https:\/\/www.sr-research.com\/zh\/case-studies\/eye-tracking-video-and-subtitles-to-an-audio-lesson\/","title":{"rendered":"Adding Video and Subtitles to an Audio Lesson"},"content":{"rendered":"<style>.wp-block-kadence-column.kb-section-dir-horizontal > .kt-inside-inner-col > .kt-info-box35200_ac54e7-39 .kt-blocks-info-box-link-wrap{max-width:unset;}.kt-info-box35200_ac54e7-39 .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-box35200_ac54e7-39 .kadence-info-box-icon-container .kt-info-svg-icon, .kt-info-box35200_ac54e7-39 .kt-info-svg-icon-flip, .kt-info-box35200_ac54e7-39 .kt-blocks-info-box-number{font-size:50px;}.kt-info-box35200_ac54e7-39 .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-box35200_ac54e7-39 .kt-blocks-info-box-media .kadence-info-box-image-intrisic img{border-radius:200px;}.kt-info-box35200_ac54e7-39 .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-box35200_ac54e7-39 .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-box35200_ac54e7-39 .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-box35200_ac54e7-39 .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-box35200_ac54e7-39\"><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: Does Adding Video and Subtitles to an Audio Lesson Facilitate its Comprehension?<\/h2><p class=\"kt-blocks-info-box-text\"><\/p><\/div><\/span><\/div>\n\n\n<style>.kb-image35200_ef5a1a-04 .kb-image-has-overlay:after{opacity:0.3;}.kb-image35200_ef5a1a-04 img.kb-img, .kb-image35200_ef5a1a-04 .kb-img img{box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}<\/style>\n<div class=\"wp-block-kadence-image kb-image35200_ef5a1a-04\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.sr-research.com\/wp-content\/uploads\/2026\/07\/learning-format-eye-tracking-research-2.0.jpg\" alt=\"Learning With Audio and Visuals Eye Tracking Research\" class=\"kb-img wp-image-35218\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">If you are creating an educational video or online lecture, it may be tempting to load the screen with dynamic background footage, animations, and graphics. The logic seems simple: more visual stimulation equals better engagement. However, a <strong><a href=\"https:\/\/doi.org\/10.1016\/j.learninstruc.2021.101542\" target=\"_blank\" rel=\"noreferrer noopener\">study by Yueyuan Zheng, Xinchen Ye, and Janet H. Hsiao <\/a><\/strong>challenges this assumption. Their research proves that when visual media isn&#8217;t essential to the lesson, extra video graphics can actually hurt comprehension by scattering the viewer&#8217;s attention. Instead, the authors found that adding subtitles can boost memory for the video content.<\/p>\n\n\n\n<h3 id=\"h-eye-tracking-methodology-to-test-the-impact-of-video-and-subtitles-in-learning\" class=\"wp-block-heading\">Eye Tracking Methodology to Test the Impact of Video and Subtitles in Learning<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The researchers ran experiments testing how native Mandarin university students absorbed 75-second factual lessons on topics like astronomy, geography, and ecology<sup><\/sup>. Participants learned under four distinct conditions<sup><\/sup>:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><em><strong>Audio-Only:<\/strong> <\/em>Spoken lesson paired with a blank screen.<\/li>\n\n\n\n<li><em><strong>Audio + Subtitles:<\/strong> <\/em>Spoken lesson paired with verbatim text.<\/li>\n\n\n\n<li><strong><em>Audio + Video:<\/em><\/strong> Spoken lesson paired with relevant full-screen background video.<\/li>\n\n\n\n<li><strong><em>Audio + Video + Subtitles:<\/em><\/strong> Spoken lesson paired with both background video and subtitles.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">To understand why some students learned better than others, the team tracked participants&#8217; eye movements using an <a href=\"https:\/\/www.sr-research.com\/eyelink-1000-plus\/\"><strong>EyeLink 1000<\/strong> <\/a>system, sampling gaze at 1000 Hz,  while participants completed memory tests and cognitive assessments.<\/p>\n\n\n\n<h3 id=\"h-subtitles-help-video-distracts-learning\" class=\"wp-block-heading\">Subtitles Help, Video Distracts Learning<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When analyzing student test scores, the researchers found two clear trends<sup><\/sup>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Subtitles Boost Memory:<\/strong> Adding verbatim subtitles to an audio lesson significantly improved test performance. Seeing the written text reinforced spoken facts.<\/li>\n\n\n\n<li><strong>Background Video Adds No Value:<\/strong> Adding background video clips provided no learning benefit over listening to the audio alone. The team argue that because the key facts were in the narration, extra video footage acted merely as visual noise.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-eye-movements-predict-comprehension\" class=\"wp-block-heading\">Eye Movements Predict Comprehension<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Using advanced machine-learning models to process the EyeLink gaze data, the researchers discovered two distinct viewing strategies among participants:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Centralized Viewers:<\/strong> Kept their gaze anchored near the center of the screen or directly on the subtitle line.<\/li>\n\n\n\n<li><strong>Distributed Viewers:<\/strong> Allowed their eyes to wander across peripheral regions and other background graphics.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The results were striking: Centralized Viewers scored significantly higher on comprehension tests. When viewers allowed their eyes to explore decorative video elements, they expended mental energy that should have been used to process the spoken lecture. Crucially, the eye-tracking data showed that adding subtitles helped stabilize visual behavior, anchoring viewers&#8217; eyes to a consistent spot and preventing their attention from wandering.<\/p>\n\n\n\n<h3 id=\"h-the-takeaway-for-educators-and-creators\" class=\"wp-block-heading\">The Takeaway for Educators and Creators<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">According to the study authors, when designing audio-driven lectures or informational presentations, the best advice is to keep visuals intentional:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Guide the viewer&#8217;s gaze:<\/strong> Encourage learners to maintain a focused, centralized visual strategy during online lectures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Include verbatim subtitles:<\/strong> Text reinforces spoken facts and anchors visual attention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Cut decorative background video:<\/strong> Unless video footage carries essential information that cannot be explained in speech, extra visual fluff steals mental bandwidth.<\/p>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-35200_d903be-b3 .kt-block-spacer{height:60px;}.wp-block-kadence-spacer.kt-block-spacer-35200_d903be-b3 .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-35200_d903be-b3\"><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-heading35200_81f3e8-92, .wp-block-kadence-advancedheading.kt-adv-heading35200_81f3e8-92[data-kb-block=\"kb-adv-heading35200_81f3e8-92\"]{text-align:center;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading35200_81f3e8-92 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading35200_81f3e8-92[data-kb-block=\"kb-adv-heading35200_81f3e8-92\"] 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-heading35200_81f3e8-92 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading35200_81f3e8-92[data-kb-block=\"kb-adv-heading35200_81f3e8-92\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<p class=\"kt-adv-heading35200_81f3e8-92 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading35200_81f3e8-92\">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:center;\">\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>If you are creating an educational video or online lecture, it may be tempting to load the screen with dynamic background footage, animations, and graphics. The logic seems simple: more visual stimulation equals better engagement. However, a study by Yueyuan Zheng, Xinchen Ye, and Janet H. Hsiao challenges this assumption. Their research proves that when &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 v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Adding Video and Subtitles to an Audio Lesson - Fast, Accurate, Reliable Eye Tracking<\/title>\n<meta name=\"description\" content=\"Learn how video and subtitles influence learning outcomes. 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