{"id":22196,"date":"2024-04-06T08:38:24","date_gmt":"2024-04-06T03:08:24","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=22196"},"modified":"2025-04-06T18:04:46","modified_gmt":"2025-04-06T12:34:46","slug":"electroencephalography","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/electroencephalography\/","title":{"rendered":"What is Electroencephalogram (EEG)?"},"content":{"rendered":"<h2>About Electroencephalogram (EEG):<\/h2>\n<ul>\n<li>An EEG is a <strong>recording of brain activity<\/strong>.<\/li>\n<li>It is a test that <strong>detects abnormalities<\/strong> in your brain waves, <strong>or<\/strong> in the <strong>electrical activity of<\/strong> your <strong>brain<\/strong>.<\/li>\n<li><strong>Procedure<\/strong>:\n<ul>\n<li>The procedure may be <strong>short<\/strong>, often just a 30-minute recording.\u00a0<\/li>\n<li>During the procedure, <strong>electrodes<\/strong> consisting of small metal discs with thin wires <strong>are pasted onto your scalp<\/strong>.<\/li>\n<li>The electrodes <strong>detect tiny electrical charges<\/strong> that result from the activity of your brain cells.<\/li>\n<li>The <strong>charges are amplified<\/strong> and <strong>appear as a graph<\/strong> on a computer screen or as a recording that may be printed out on paper.\u00a0<\/li>\n<li>The EEG procedure is usually <strong>carried out<\/strong> by a highly trained specialist, called a <strong>clinical neurophysiologist<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Applications:<\/strong>\n<ul>\n<li>The EEG is <strong>used to evaluate several types of brain disorders<\/strong>. <strong>Examples<\/strong>:<\/li>\n<\/ul>\n<\/li>\n<li>When epilepsy is present, seizure activity will appear as rapid spiking waves on the EEG.<\/li>\n<li>People with lesions of their brain, which can result from tumors or strokes, may have unusually slow EEG waves, depending on the size and location of the lesion.<\/li>\n<\/ul>\n<p>The EEG may also be <strong>used to determine<\/strong> the <strong>overall electrical activity of the brain<\/strong> (for example, to evaluate trauma, drug intoxication, or extent of brain damage in comatose patients).<\/p>\n<p>The EEG may also be used to<strong> monitor blood flow<\/strong> in the brain <strong>during surgical procedures.<\/strong><\/p>\n<hr \/>\n<h3>Q1: What are electrodes?<\/h3>\n<p>An electrode is a solid electric conductor that carries electric current into non-metallic solids, or liquids, or gases, or plasmas, or vacuums. Electrodes are typically good electric conductors, but they need not be metals.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/a-century-after-the-eeg-was-discovered-it-remains-a-crucial-tool-for-understanding-the-brain\/article68032401.ece\" target=\"_blank\" rel=\"nofollow noopener\"><u>A century after the EEG was discovered, it remains a crucial tool for understanding the brain<\/u><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Electroencephalogram (EEG) is a test that detects abnormalities in your brain waves, or in the electrical activity of your brain. <\/p>\n","protected":false},"author":5,"featured_media":22197,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-22196","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/22196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=22196"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/22196\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/22197"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=22196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=22196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=22196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}