{"id":286,"date":"2011-12-07T12:37:09","date_gmt":"2011-12-07T17:37:09","guid":{"rendered":"http:\/\/therapytoronto.ca\/news\/?p=286"},"modified":"2011-12-07T13:41:47","modified_gmt":"2011-12-07T18:41:47","slug":"study-suggests-learning-from-reinforcement-can-actually-impair-decisionmaking-process","status":"publish","type":"post","link":"https:\/\/therapytoronto.ca\/news\/2011\/12\/study-suggests-learning-from-reinforcement-can-actually-impair-decisionmaking-process\/","title":{"rendered":"Study suggests learning from reinforcement can actually impair decisionmaking process"},"content":{"rendered":"<p>From the Hebrew University of Jerusalem via EurekAlert!:<\/p>\n<blockquote><p><img loading=\"lazy\" class=\"alignright\" title=\"decision-making\" src=\"http:\/\/therapytoronto.ca\/images\/blogpics\/Pondering.jpg\" alt=\"\" width=\"294\" height=\"194\" \/>Basketball fans everywhere recognize the following scenario: Their  favorite player scores a three-point shot. A short time later he regains  control of the ball. But does the fact that he scored the last time  make him more likely to try another three-pointer? Does it change the  probability that he will score again?<\/p>\n<p>New research by Dr. Yonatan Loewenstein and graduate student Tal  Neiman at the Hebrew University in Jerusalem shatters the myth that a  player who scores one or more three-pointers improves his odds of  scoring another. Dr. Loewenstein is at the Edmond and Lily Safra Center  for Brain Sciences and the Department of Neurobiology at the Hebrew  University.<\/p>\n<p>Appearing in the latest issue of the journal <em>Nature Communications<\/em>,  the report raises doubts about the ability of athletes in particular,  and people in general, to predict future success based on past  performance.<\/p>\n<p>Loewenstein and Neiman examined more than 200,000 attempted shots  from 291 leading players in the National Basketball Association (NBA) in  the 2007-2008 and 2008-2009 regular seasons, and more than 15,000  attempted shots by 41 leading players in the Women&#8217;s National Basketball  Association (WNBA) during the 2008 and 2009 regular seasons.<\/p>\n<p>The researchers studied how scores or misses affected a player&#8217;s  behavior later in the game, and found that <strong>after a successful  three-pointer, players were significantly more likely to attempt another  three-pointer. In other words, a successful three point shot provided  players with positive reinforcement to attempt additional three point  shots later in the game<\/strong>.<\/p>\n<p>Surprisingly, the researchers discovered the exact opposite of what  players and fans tend to believe: <strong>players who scored a three-pointer and  then attempted another three-pointer were more likely to miss the  follow-up shot. On the other hand, players who missed a previous  three-pointer were more likely to score with their next attempt<\/strong>.<\/p>\n<p>According to Dr. Loewenstein, &#8220;The study shows that despite many  years of intense training, even the best basketball players  over-generalize from their most recent actions and their outcomes. They  assume that even one shot is indicative of future performance, while not  taking into account that the situation in which they previously scored  is likely to be different than the current one.&#8221;  The behavior of basketball players shows the limitations of learning  from reinforcement, especially in a complex environment such as a  basketball game.<\/p>\n<p>&#8220;<strong>Learning from reinforcement may not improve performance, and may  even damage it, if it is not based on an accurate model of the world<\/strong>,&#8221;  explains Dr. Loewenstein. &#8220;This affects everyone&#8217;s behavior: <strong>brokers  make investments according to past market performance and commanders  make military moves based on the results of past battles. Awareness of  the limitations of this kind of learning can help them improve their  decision-making processes \u00e2\u20ac\u201d as well as those of basketball players.<\/strong>&#8220;<\/p><\/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 Hebrew University of Jerusalem via EurekAlert!: Basketball fans everywhere recognize the following scenario: Their favorite player scores a three-point shot. A short time later he regains control of&#8230; <a class=\"read-more-link\" href=\"https:\/\/therapytoronto.ca\/news\/2011\/12\/study-suggests-learning-from-reinforcement-can-actually-impair-decisionmaking-process\/\">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":[5,8],"tags":[127,28,19,126],"_links":{"self":[{"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/posts\/286"}],"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=286"}],"version-history":[{"count":1,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/posts\/286\/revisions"}],"predecessor-version":[{"id":287,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/posts\/286\/revisions\/287"}],"wp:attachment":[{"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/media?parent=286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/categories?post=286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/therapytoronto.ca\/news\/wp-json\/wp\/v2\/tags?post=286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}