{"id":5681,"date":"2025-01-06T19:05:28","date_gmt":"2025-01-06T17:05:28","guid":{"rendered":"https:\/\/elpoligrafo.es\/la-ciencia-detras-del-poligrafo-como-funciona-realmente\/"},"modified":"2025-07-26T19:21:34","modified_gmt":"2025-07-26T17:21:34","slug":"the-science-behind-the-polygraph-how-it-really-works","status":"publish","type":"post","link":"https:\/\/elpoligrafo.es\/en\/the-science-behind-the-polygraph-how-it-really-works\/","title":{"rendered":"The science behind the polygraph - how it really works"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_75 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/elpoligrafo.es\/en\/the-science-behind-the-polygraph-how-it-really-works\/#La_ciencia_detras_del_poligrafo_%C2%BFComo_funciona_realmente\" >The science behind the polygraph: How does it really work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/elpoligrafo.es\/en\/the-science-behind-the-polygraph-how-it-really-works\/#Lo_basico_del_poligrafo\" >Polygraph basics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/elpoligrafo.es\/en\/the-science-behind-the-polygraph-how-it-really-works\/#La_ciencia_detras_de_las_respuestas_del_cuerpo\" >The science behind the body's responses<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/elpoligrafo.es\/en\/the-science-behind-the-polygraph-how-it-really-works\/#El_papel_del_interrogador_en_el_poligrafo\" >The role of the interrogator in the polygraph<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/elpoligrafo.es\/en\/the-science-behind-the-polygraph-how-it-really-works\/#Poligrafo_y_la_tecnologia_actual\" >Polygraph and today's technology<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2><span class=\"ez-toc-section\" id=\"La_ciencia_detras_del_poligrafo_%C2%BFComo_funciona_realmente\"><\/span>The science behind the polygraph: How does it really work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Have you ever wondered what's in the guts of the lie-detecting machine? We will delve into <strong>The science behind the polygraph: How does it really work?<\/strong>. Yes, we are talking about the famous lie detector, a fascinating device that has captivated global attention.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Lo_basico_del_poligrafo\"><\/span>Polygraph basics<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a class=\"wpil_keyword_link\" title=\"The polygraph\" href=\"https:\/\/elpoligrafo.es\/en\/\" data-wpil-keyword-link=\"linked\">The polygraph<\/a> is not a magic machine, but a device that records various physical parameters while you are being asked questions. Changes in breathing, blood pressure and perspiration can reveal whether you are telling the truth or faking it.<\/p>\n<p>From the chair you sit on to the sensors they place on your body, each element plays an essential role. But to understand <strong> the science behind the polygraph and how it really works<\/strong>We need to do more research.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"La_ciencia_detras_de_las_respuestas_del_cuerpo\"><\/span>The science behind the body's responses<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>When someone lies, their body experiences stress. This stress can be measured through changes in breathing, pulse and perspiration. This is how the polygraph develops its role as an arbiter between truth and lies.<\/p>\n<p>It is important to mention that the polygraph is not infallible. Nerves, fear or even special lying skills can confuse the machine. At <a href=\"https:\/\/elpoligrafo.es\/en\/the-polygraph-test\/\">The polygraph test<\/a>\u00a0many of these doubts are clarified.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"El_papel_del_interrogador_en_el_poligrafo\"><\/span>The role of the interrogator in the polygraph<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Without a skilled interrogator, the machine is just that, a machine. A trained professional knows how to interpret the results and identify truths and lies. But before starting with the key questions, a pre-test is conducted to establish a baseline of honest answers.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Poligrafo_y_la_tecnologia_actual\"><\/span>Polygraph and today's technology<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Today, technology has developed even further, allowing polygraphs to detect even small fluctuations in tone of voice, which could indicate that a person is lying.<\/p>\n<p>So how does a polygraph actually work? Simply put, it measures the changes in the body produced by the stress of lying and interprets them with the help of an expert interrogator. But its effectiveness is not 100%, so you should never rely entirely on its results.<\/p>\n<p>The <strong>science behind the polygraph<\/strong> and how it works is a fascinating and constantly evolving field, a testament to our desire to seek the truth. And while it is not perfect, it remains a remarkable tool in the search for honest answers to complex situations.<\/p>\n<div class='banner-cita'><a href=\"https:\/\/api.whatsapp.com\/send\/?phone=34603413693&amp;text=Hola%2C+Necesito+m\u00e1s+informaci\u00f3n\" target=\"_blank\" rel=\"noopener\"><img src='https:\/\/elpoligrafo.es\/images\/banner-cita-2.png'><\/a> <\/div><div class=\"rank-math-contact-info show-name show-organization_description show-email show-address show-hours show-phone show-additional_info show-map\"><div class=\"rank-math-contact-section rank-math-contact-name\">\t\t<h4 class=\"rank-math-name\">\n\t\t\t<a href=\"https:\/\/elpoligrafo.es\/en\/\">El Pol\u00edgrafo M\u00e1laga<\/a>\n\t\t<\/h4>\n\t\t<\/div><div class=\"rank-math-contact-section rank-math-contact-organization_description\"><\/div><div class=\"rank-math-contact-section rank-math-contact-email\">\t\t<div class=\"rank-math-email\">\n\t\t\t<label>Email:<\/label>\n\t\t\t<a href=\"mailto:info@elpoligrafo.es\">info@elpoligrafo.es<\/a>\n\t\t<\/div>\n\t\t<\/div><div class=\"rank-math-contact-section rank-math-contact-address\">\t\t<label>Address:<\/label>\n\t\t<address><span class=\"contact-address-streetAddress\">C. Enmedio<\/span> <span class=\"contact-address-addressLocality\">La Cala del Moral<\/span>, <span class=\"contact-address-addressRegion\">Malaga<\/span> <span class=\"contact-address-postalCode\">29720<\/span><\/address>\n\t\t<\/div><div class=\"rank-math-contact-section rank-math-contact-hours\">\t\t<label>Hours:<\/label>\n\t\t<div class=\"rank-math-contact-hours-details\">\n\t\t\t<div class=\"rank-math-opening-hours\"><span class=\"rank-math-opening-days\">Monday, Tuesday, Wednesday, Thursday, Friday<\/span><span class=\"rank-math-opening-time\">09:00 - 17:00<\/span><\/div>\t\t<\/div>\n\t\t<\/div><div class=\"rank-math-contact-section rank-math-contact-phone\">\t\t\t<div class=\"rank-math-phone-number type-customersupport\">\n\t\t\t\t<label>Customer Service:<\/label>\n\t\t\t\t<span><a href=\"tel:\/\/603 41 36 93\">603 41 36 93<\/a><\/span>\n\t\t\t<\/div>\n\t\t\t<\/div><div class=\"rank-math-contact-section rank-math-contact-additional_info\"><\/div><div class=\"rank-math-contact-section rank-math-contact-map\"><\/div><\/div><div class=\"clear\"><\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The science behind the polygraph: How does it really work? Have you ever wondered what's at the heart of the lie-detecting machine? We'll delve into The Science Behind the Polygraph: How It Really Works. Yes, we're talking about the...<\/p>","protected":false},"author":2,"featured_media":5682,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-1","description-off"],"_links":{"self":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/posts\/5681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/comments?post=5681"}],"version-history":[{"count":0,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/posts\/5681\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/media\/5682"}],"wp:attachment":[{"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/media?parent=5681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/categories?post=5681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/elpoligrafo.es\/en\/wp-json\/wp\/v2\/tags?post=5681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}