{"id":118627,"date":"2024-10-26T15:51:13","date_gmt":"2024-10-26T08:51:13","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=118627"},"modified":"2024-10-26T15:51:13","modified_gmt":"2024-10-26T08:51:13","slug":"mental-fatigue-triggers-compensatory-brain-mechanisms","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=118627","title":{"rendered":"Mental Fatigue Triggers Compensatory Brain Mechanisms"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p><strong>Summary: <\/strong>A recent study shows that prolonged mental exertion weakens connectivity between the brain\u2019s frontal and parietal lobes, impacting cognitive efficiency. However, the brain has built-in compensatory mechanisms that adjust neural connections to preserve function under fatigue.<\/p>\n<p>Researchers observed this in participants completing memory tasks of varying difficulty; while fatigue slowed performance on simple tasks, complex tasks triggered compensatory adjustments. Findings suggest that these mechanisms allow the brain to optimize resources based on task complexity.<\/p>\n<p>Understanding how these processes work can have implications for enhancing productivity and mental resilience in high-demand scenarios. This research highlights the brain\u2019s adaptability in managing limited cognitive resources under strain.<\/p>\n<p><strong>Key Facts<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li>Mental fatigue reduces functional connectivity between the brain\u2019s frontal and parietal lobes.<\/li>\n<li>Compensatory mechanisms in the brain help maintain task performance under fatigue.<\/li>\n<li>Simple tasks slow under fatigue, but complex tasks can trigger compensatory adjustments.<\/li>\n<\/ul>\n<p><strong>Source: <\/strong>Scientific Project Lomonosov<\/p>\n<p><strong>Scientists from Immanuel Kant Baltic Federal University found out that prolonged mental load led to decrease of functional connectivity between frontal and parietal lobes of brain, that is followed by decrease of efficiency of information processing. <\/strong><\/p>\n<p>However, there are compensatory mechanisms that enable brain to maintain working capacity thanks to changes of configuration of frontoparietal net.<\/p>\n<p>Results of the research are\u00a0published\u00a0in magazine <em>IEEE Transactions on Cognitive and Developmental Systems.<\/em><\/p>\n<figure class=\"wp-block-image size-full\"><picture fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-105764\"><source type=\"image\/webp\" srcset=\"https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience.jpg.webp 1200w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-300x200.jpg.webp 300w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-770x513.jpg.webp 770w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-1155x770.jpg.webp 1155w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-370x247.jpg.webp 370w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-293x195.jpg.webp 293w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-150x100.jpg.webp 150w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\/><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience.jpg\" alt=\"This shows a brain.\" srcset=\"https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience.jpg 1200w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-300x200.jpg 300w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-770x513.jpg 770w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-1155x770.jpg 1155w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-370x247.jpg 370w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-293x195.jpg 293w, https:\/\/neurosciencenews.com\/files\/2024\/10\/metnal-fatigue-cognitive-load-neuroscience-150x100.jpg 150w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"\/> <\/picture><figcaption class=\"wp-element-caption\">According to results, level of fatigue of all participants after fulfilling tasks became significantly higher, however number of mistakes didn\u2019t increase. Credit: Neuroscience News<\/figcaption><\/figure>\n<p>Continuous work with great deal of information, for example, databases, documents and reports, demands high concentration. Active brain activity can lead to overwork and fatigue, that causes decrease of working capacity of brain.<\/p>\n<p>However, researches\u00a0show\u00a0that in our nervous system exist so-called compensatory mechanisms \u2013 means to cope with fatigue.<\/p>\n<p>At the same time, it is not completely clear how exactly a compensatory mechanism starts and works, and also how it influences different brain functions, in particular \u2013 memory.<\/p>\n<p>Scientists from Immanuel Kant Baltic Federal University (Kaliningrad) made research how brain activity and perception of information change during continuous performing of cognitive tasks.<\/p>\n<p>14 people from 18 to 22 took part in the experiment in which they during 70 minutes passed Sternberg test \u2013 a set of tasks for estimation of working memory. In frames of the test trial subjects had to memorize a set of 2-7 letters during 1,5-2,5 seconds.<\/p>\n<p>Then a certain letter was demonstrated to the participants and they had to answer if the original set contained it. For this purpose, researchers divided all tasks into two blocks \u2013 \u201csimple\u201d that required memorization of sequence of 2-3 letters, and \u201ccomplex\u201d \u2013 of 6-7 letters.<\/p>\n<p>In the course of research authors used functional near-infrared spectrography (fNIRS) for registration of hemodynamic activity of brain and method of eye movement recordings (eye-tracking) for analysis of visual perception. Scientists also offered participants to pass several tests on the level of fatigue in the form of questionnaires before and after the experiment.<\/p>\n<p>According to results, level of fatigue of all participants after fulfilling tasks became significantly higher, however number of mistakes didn\u2019t increase.<\/p>\n<p>By this fatigue led to increase of time of fulfilment of tasks of low complexity, whereas length of fulfilling tasks of high complexity remained unchangeable during all course of experiment.<\/p>\n<p>It tells about the fact that in the second case the intenseness reached such grade by which in brain started compensatory mechanisms of struggling with fatigue.<\/p>\n<p>Observations of how activity of different areas of brain changed, showed that in the course of fulfilment of tasks and increasing of fatigue test people experienced weakening of functional connections between frontal and parietal lobes of brain cortex.<\/p>\n<p>The importance of these connections for fulfilment of cognitive tasks is confirmed also by the fact that participants who coped with task from \u201ccomplex\u201d category better showed higher connectivity between frontal and parietal lobes.<\/p>\n<p>Probably, the maintenance of these cooperations is a part of compensatory mechanism, that enables to struggle with fatigue.<\/p>\n<p>\u00a0\u201cBecause of limited resources brain has to optimize its work in order to cope with tasks efficiently, in spite of fatigue.\u00a0 Complex tasks require a greater control of attention and mobilization of additional resources for solving them.<\/p>\n<p>\u201cSimple tasks, on the contrary, can be successfully fulfilled with minimal efforts, thus enabling brain to save resources. That is why, for example, when a tired driver arrives to a multiple crossing, he mobilizes his internal resources and successfully maneuvers.<\/p>\n<p>\u201cHowever, in condition of more simple driving situation he makes a mistake because of fatigue, that leads to an accident, for example, incidentally drives to an opposite line or a roadside\u201d, \u2013 tells Artem Badarin, candidate of Physical and Mathematical Sciences, senior research associate Center for Neurotechnology and Machine Learning, Immanuel Kant Baltic Federal University, Kaliningrad.<\/p>\n<h2 class=\"wp-block-heading\">About this mental fatigue and neuroscience research news<\/h2>\n<p class=\"has-background\" style=\"background-color:#ffffe8\"><strong>Author: <\/strong><a href=\"http:\/\/neurosciencenews.com\/cdn-cgi\/l\/email-protection#86e7a8edf3f4e4e7f2e9f0c6f5f6abeae9ebe9e8e9f5e9f0a8e5e9eb\" target=\"_blank\" rel=\"noreferrer noopener\">Yana Khlyustova<\/a><br \/><strong>Source: <\/strong><a href=\"https:\/\/sp-lomonosov.com\" target=\"_blank\" rel=\"noreferrer noopener\">Scientific Project Lomonosov<\/a><br \/><strong>Contact:<\/strong>Yana Khlyustova \u2013 Scientific Project Lomonosov<br \/><strong>Image: <\/strong>The image is credited to Neuroscience News<\/p>\n<p class=\"has-background\" style=\"background-color:#ffffe8\"><strong>Original Research: <\/strong>Open access.<br \/>\u201c<a href=\"https:\/\/ieeexplore.ieee.org\/document\/10665957\" target=\"_blank\" rel=\"noreferrer noopener\">Brain compensatory mechanisms during the prolonged cognitive task: fNIRS and Eye-Tracking study<\/a>\u201d by Artem Badarin et al. <em>IEEE Transactions on Cognitive and Developmental Systems<\/em><\/p>\n<hr class=\"wp-block-separator has-text-color has-pale-cyan-blue-color has-alpha-channel-opacity has-pale-cyan-blue-background-color has-background\"\/>\n<p><strong>Abstract<\/strong><\/p>\n<p><strong>Brain compensatory mechanisms during the prolonged cognitive task: fNIRS and Eye-Tracking study<\/strong><\/p>\n<p>The problem of maintaining cognitive performance under fatigue is crucial in fields requiring high concentration and efficiency to successfully complete critical tasks. In this context, the study of compensatory mechanisms that help the brain overcome fatigue is particularly important.<\/p>\n<p>This research investigates the correlations between physiological, behavioral, and subjective measures while considering the impact of fatigue on the performance of working memory tasks.<\/p>\n<p>A combined approach of functional near-infrared spectroscopy (fNIRS) and eye-tracking was used to reconstruct brain functional networks based on fNIRS data and analyze them in terms of network characteristics such as global clustering coefficient and global efficiency.<\/p>\n<p>Results showed a significant increase in subjective fatigue but no significant change in performance during the experiment. The study confirmed that despite fatigue, subjects can maintain performance through compensatory mechanisms, increasing mental effort, with the level of compensation depending on the task\u2019s complexity.<\/p>\n<p> Furthermore, the study showed that compensatory effort maintains the efficiency of the frontoparietal network, and the degree of compensatory effort is related to the difference in response times between high- and low-complexity tasks.<\/p>\n<p> <!-- Form created by Optin Forms plugin by WPKube: create beautiful optin forms with ease! --> <!-- https:\/\/wpkube.com\/ --><!--optinforms-form5-container--> <!-- \/ Optin Forms --> <\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/neurosciencenews.com\/mental-fatigue-brain-mechanism-27947\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Summary: A recent study shows that prolonged mental exertion weakens connectivity between the brain\u2019s frontal and parietal lobes, impacting cognitive efficiency. However, the brain has built-in compensatory mechanisms that adjust &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=118627\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-118627","post","type-post","status-publish","format-standard","hentry","category-health","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/118627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=118627"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/118627\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=118627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=118627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=118627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}