{"id":147847,"date":"2022-03-20T05:13:57","date_gmt":"2022-03-19T23:43:57","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/electroencephalography-eeg-types-procedure-mechanism-and-faqs\/"},"modified":"2022-04-13T16:42:52","modified_gmt":"2022-04-13T11:12:52","slug":"electroencephalography-eeg-types-procedure-mechanism-and-faqs","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/biology\/electroencephalography\/","title":{"rendered":"Electroencephalography (EEG) &#8211; Types, Procedure, Mechanism and FAQs"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">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\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><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><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/electroencephalography\/#Introduction_to_Electroencephalography_EEG\" title=\"Introduction to Electroencephalography; EEG\">Introduction to Electroencephalography; EEG<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/electroencephalography\/#EEG_Test_Procedure\" title=\"EEG Test Procedure\">EEG Test Procedure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/electroencephalography\/#Risk_Associated_with_the_Use_of_a_contraceptive\" title=\"Risk Associated with the Use of a contraceptive\">Risk Associated with the Use of a contraceptive<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/electroencephalography\/#Mechanism_of_Electroencephalography\" title=\"Mechanism of Electroencephalography\">Mechanism of Electroencephalography<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/electroencephalography\/#Types_of_Wave_in_EEG\" title=\"Types of Wave in EEG\">Types of Wave in EEG<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/electroencephalography\/#EEG_Scan_Artifact\" title=\"EEG Scan Artifact\">EEG Scan Artifact<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction_to_Electroencephalography_EEG\"><\/span>Introduction to Electroencephalography; EEG<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Electroencephalography is the process of recording the electrical activity of the brain. This is done by placing electrodes on the scalp, which detects the tiny electrical signals that are produced by the brain. The EEG recording is then analyzed to see how the brain is functioning.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-147846 size-full\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/electroencephalography-eeg-types-procedure-mechanism-and-faqs.jpg\" alt=\"\" width=\"606\" height=\"428\" srcset=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/electroencephalography-eeg-types-procedure-mechanism-and-faqs.jpg?v=1647733434 606w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/electroencephalography-eeg-types-procedure-mechanism-and-faqs-300x212.jpg?v=1647733434 300w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"EEG_Test_Procedure\"><\/span>EEG Test Procedure<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The EEG test procedure typically starts with the patient removing any clothing or jewelry that may interfere with the test. Next, electrodes are attached to the scalp in specific locations using a sticky paste. The electrodes are then connected to the EEG machine, which records the electrical activity of the brain. The patient is typically asked to relax and may be asked to close their eyes. The test usually lasts for about 30 minutes.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Risk_Associated_with_the_Use_of_a_contraceptive\"><\/span>Risk Associated with the Use of a contraceptive<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There is a risk associated with the use of any contraceptive, including death. However, the risk is very small. The most common risk is an unintended pregnancy. Other risks include blood clots, heart attack, and stroke.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mechanism_of_Electroencephalography\"><\/span>Mechanism of Electroencephalography<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>EEG measures the electrical potentials generated by the brain. When the brain cells fire, they generate tiny electrical currents. These currents are picked up by electrodes placed on the scalp. The EEG records the size, shape, and location of these currents.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Types_of_Wave_in_EEG\"><\/span>Types of Wave in EEG<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>EEG waves are divided into four main categories: alpha, beta, theta, and delta.<\/p>\n<p>Alpha waves are produced when the brain is relaxed and at rest. They have a frequency of 8-12 Hz and are usually seen in the posterior regions of the brain.<\/p>\n<p>Beta waves are produced when the brain is engaged in tasks that require concentration and focus. They have a frequency of 13-30 Hz and are usually seen in the frontal regions of the brain.<\/p>\n<p>Theta waves are produced when the brain is in a state of deep relaxation or meditation. They have a frequency of 4-8 Hz and are usually seen in the posterior regions of the brain.<\/p>\n<p>Delta waves are produced when the brain is in a state of deep sleep. They have a frequency of 0.5-4 Hz and are usually seen in the posterior regions of the brain.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"EEG_Scan_Artifact\"><\/span>EEG Scan Artifact<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>EEG scan artifact is an electrical signal that is produced by some external or internal source other than the brain. This signal can be very strong and can produce a false reading on the EEG scan. Some common sources of EEG scan artifact include muscle activity, eye movement, and electrical noise from the environment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction to Electroencephalography; EEG Electroencephalography is the process of recording the electrical activity of the brain. This is done by [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Electroencephalography (EEG) - Types, Procedure, Mechanism and FAQs","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Learn about electroencephalography topic of Biology in details explained by subject experts on infinitylearn.com. 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