{"id":2991,"date":"2012-05-15T17:52:24","date_gmt":"2012-05-15T21:52:24","guid":{"rendered":"http:\/\/therapytoronto.ca\/news\/?p=2991"},"modified":"2012-05-15T17:52:24","modified_gmt":"2012-05-15T21:52:24","slug":"study-suggests-our-senses-do-not-experience-the-world-continuously","status":"publish","type":"post","link":"https:\/\/therapytoronto.ca\/news\/2012\/05\/study-suggests-our-senses-do-not-experience-the-world-continuously\/","title":{"rendered":"Study suggests our senses do not experience the world continuously"},"content":{"rendered":"<p>From the University of Glasgow press release via MedicalXpress:<\/p>\n<blockquote><p><strong><img loading=\"lazy\" class=\"alignright\" title=\"Brainwave\" src=\"http:\/\/therapytoronto.ca\/images\/blogpics\/Brainwave.jpg\" alt=\"\" width=\"267\" height=\"200\" \/>It has long been suspected that humans do not experience the world continuously, but rather in rapid snapshots.<\/strong><\/p>\n<div id=\"news-text\">\n<p>Now, researchers at the University of Glasgow have demonstrated <strong>this is indeed the case<\/strong>. Just as the body goes through a 24-hour sleep-wake cycle controlled by a circadian clock, <strong>brain function undergoes such cyclic activity \u2013 albeit at a much faster rate<\/strong>.<\/p>\n<p>Professor Gregor Thut of the Institute of Neuroscience and Psychology, said: \u201cRhythms are intrinsic to biological systems. The circadian rhythm, with its very slow periodicity of sleep and wake cycles every 24 hours has an obvious, periodic effect on bodily functions.<\/p>\n<p>\u201cBrain oscillations \u2013 the recurrent neural activity that we see in the brain \u2013 also show periodicity but cycle at much faster speeds. What we wanted to know was whether brain function was affected in a cyclic manner by these rapid oscillations.\u201d<\/p>\n<p>The researchers studied a prominent brain rhythm associated with visual cortex functioning that cycles at a rate of 10 times per second (10Hz).<\/p>\n<p>They used a \u2018simple trick\u2019 to affect the oscillations of this rhythm which involved presenting a brief sound to \u2018reset\u2019 the oscillation.<\/p>\n<p>Testing subsequent visual perception, by using transcranial magnetic stimulation of the visual cortex, revealed a cyclic pattern at the very rapid rate of brain oscillations, in time with the underlying brainwaves.<\/p>\n<p>Prof Thut said: \u201c<strong>Rhythmicity therefore is indeed omnipresent not only in brain activity but also<\/strong> brain function. For perception, this means that <strong>despite experiencing the world as a continuum, we do not sample our world continuously but in discrete snapshots determined by the cycles of brain rhythms<\/strong>.\u201d<\/p>\n<p>The research, \u2018Sounds reset rhythms of visual cortex and corresponding human visual perception\u2019 is published in the journal <em>Current Biology<\/em>.<\/p>\n<p><strong> More information:<\/strong> Romei et al., Sounds Reset Rhythms of Visual Cortex and Corresponding Human Visual Perception, <em>Current Biology<\/em> (2012), doi:10.1016\/j.cub.2012.03.025<\/p>\n<\/div>\n<\/blockquote>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>From the University of Glasgow press release via MedicalXpress: It has long been suspected that humans do not experience the world continuously, but rather in rapid snapshots. Now, researchers at&#8230; <a class=\"read-more-link\" href=\"https:\/\/therapytoronto.ca\/news\/2012\/05\/study-suggests-our-senses-do-not-experience-the-world-continuously\/\">Read more &raquo;<\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[42,363,12],"_links":{"self":[{"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/posts\/2991"}],"collection":[{"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/comments?post=2991"}],"version-history":[{"count":1,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/posts\/2991\/revisions"}],"predecessor-version":[{"id":2992,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/posts\/2991\/revisions\/2992"}],"wp:attachment":[{"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/media?parent=2991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/categories?post=2991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/tags?post=2991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}