{"id":2224,"date":"2009-07-16T16:19:55","date_gmt":"2009-07-16T19:19:55","guid":{"rendered":"http:\/\/www.ufrgs.br\/psicoeduc\/?page_id=2224"},"modified":"2009-07-16T16:19:55","modified_gmt":"2009-07-16T19:19:55","slug":"video-conditioned-suppression-of-a-rats-lever-pressing","status":"publish","type":"page","link":"https:\/\/www.ufrgs.br\/psicoeduc\/behaviorismo\/video-conditioned-suppression-of-a-rats-lever-pressing\/","title":{"rendered":"V\u00eddeo Conditioned suppression of a rat&#8217;s lever pressing"},"content":{"rendered":"<p><a title=\"Anarchy Media Player - Right click to download file\" href=\"https:\/\/www.ufrgs.br\/psicoeduc\/videos\/behaviorismo\/Conditioned-suppression-of-a-rats-lever-pressing.flv\"><\/a><\/p>\n<p><strong>URL:<\/strong> <a href=\"http:\/\/www.youtube.com\/watch?v=ZlZekx1P1g4\">http:\/\/www.youtube.com\/watch?v=ZlZekx1P1g4<\/a><\/p>\n<p><strong>Coment\u00e1rios:<\/strong> The conditioned suppression procedure involves a Pavlovian pairing of a CS with an aversive US, such as an electrical shock. It has been used in a number of situations and is especially useful for studying the acqusition and extinction of conditioned fear. The researcher begins by training a rat to press a lever for food reinforcement. Once the rat is reliably lever pressing, the researcher presents a CS such as a tone or light, and terminates the CS with a brief footshock US. Fear is measured by the extent to which the tone elicits a freezing response and thus suppresses the rat&#8217;s lever pressing. In the present procedure, the 15-s tone CS (designated with a musical note) is 80 dB. The shock US is mild (.4 mA) and brief (0.3 s). This video presents three tone-shock trials. The first two are the rat&#8217;s first and second CS-US pairings; the third shows the rat freezing after 10 trials. (1:19)<\/p>\n<p><strong>Fonte:<\/strong> <a href=\"http:\/\/www.youtube.com\/user\/daleswartzentruber\">http:\/\/www.youtube.com\/user\/daleswartzentruber<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>URL: http:\/\/www.youtube.com\/watch?v=ZlZekx1P1g4 Coment\u00e1rios: The conditioned suppression procedure involves a Pavlovian pairing of a CS with an aversive US, such as an electrical shock. It has been used in a number of situations and is especially useful for studying the acqusition and extinction of conditioned fear. The researcher begins by training a rat to press a &hellip; <a href=\"https:\/\/www.ufrgs.br\/psicoeduc\/behaviorismo\/video-conditioned-suppression-of-a-rats-lever-pressing\/\" class=\"more-link\">Continue lendo<span class=\"screen-reader-text\"> &#8220;V\u00eddeo Conditioned suppression of a rat&#8217;s lever pressing&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1038,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"class_list":["post-2224","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/pages\/2224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/comments?post=2224"}],"version-history":[{"count":0,"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/pages\/2224\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/pages\/1038"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/psicoeduc\/wp-json\/wp\/v2\/media?parent=2224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}