{"id":8342,"date":"2019-12-17T10:38:21","date_gmt":"2019-12-17T09:38:21","guid":{"rendered":"http:\/\/sydologie.com\/?p=8342"},"modified":"2024-11-25T10:00:28","modified_gmt":"2024-11-25T09:00:28","slug":"les-biais-cognitifs-2-leffet-de-halo","status":"publish","type":"post","link":"https:\/\/sydo.fr\/sydologie\/2019\/12\/les-biais-cognitifs-2-leffet-de-halo\/","title":{"rendered":"Les biais cognitifs #2 : L&rsquo;effet de halo"},"content":{"rendered":"<p>Dans le pr\u00e9c\u00e9dent article, nous vous expliquions ce que sont les biais cognitifs et comment ils jouent avec nos perceptions. Cette semaine, d\u00e9couvrez comment fonctionne l\u2019un des biais cognitifs les plus r\u00e9pandus : <strong>l\u2019effet de halo !<\/strong><br \/>\n&nbsp;<br \/>\nImaginez, vous \u00eates inscrit \u00e0 une formation, vous vous rendez sur place et, dans l\u2019ascenseur, vous croisez une personne souriante qui vous tient la porte et qui se rend au m\u00eame \u00e9tage que vous. Vous \u00e9changez rapidement, vous le\/la trouvez sympathique et plein(e) d\u2019humour (il\/elle a ri \u00e0 votre jeu de mots pourri sur l\u2019ascenseur et a m\u00eame rebondi, c\u2019est dire).<br \/>\n&nbsp;<br \/>\nQuelques minutes et un caf\u00e9 plus tard, bingo ! Vous d\u00e9couvrez en poussant la porte de la salle qu\u2019il s\u2019agissait\u2026 de <strong>votre formateur\/formatrice du jour<\/strong>. Vous lui faites signe de la main et l\u2019observez du coin de l\u2019\u0153il pendant qu\u2019il\/elle accueille les participants avec enthousiasme, chaleur et bonhomie, confirmant votre bonne premi\u00e8re impression. Et lorsque la formation d\u00e9bute, malgr\u00e9 son Powerpoint d\u00e9fraichi et son ton un peu monocorde, vous buvez ses paroles, \u00e9bloui par sa culture et son sens de la r\u00e9partie. Bref, vous \u00eates conquis(e)\u2026<br \/>\n&nbsp;<\/p>\n<h2>La force des premi\u00e8res impressions<\/h2>\n<p>&nbsp;<br \/>\nBien s\u00fbr, je vous entends d\u2019ici me dire que, dans la vraie vie, les choses ne se produisent pas exactement ainsi. Pourtant, <strong>pourriez-vous jurer en toute honn\u00eatet\u00e9 n\u2019avoir jamais \u00e9t\u00e9 influenc\u00e9(e) par la premi\u00e8re image<\/strong> que vous avez eue d\u2019une personne, d\u2019un lieu, d\u2019un cours ?<br \/>\n&nbsp;<br \/>\nComme dans ce sc\u00e9nario fictif, il est fort probable que vous soyez r\u00e9guli\u00e8rement victime \u00e0 votre insu de l\u2019effet de halo : <strong>ce biais cognitif affecte notre perception des choses <\/strong> et nous conduit \u00e0 attribuer \u00e0 quelqu\u2019un ou \u00e0 quelque chose tout un ensemble de traits sur la base d\u2019une seule caract\u00e9ristique particuli\u00e8re que nous avons pu observer. Autrement dit, notre cerveau se base sur une observation sp\u00e9cifique (\u00ab cette personne est souriante\u2026 \u00bb) pour en extraire un jugement plus global \u2013 et parfois, il faut le dire, plus capillotract\u00e9 (\u00ab \u2026 elle est donc forc\u00e9ment sympa, sociable, intelligente, philanthrope, etc. \u00bb).<br \/>\n&nbsp;<br \/>\n<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium aligncenter\" src=\"https:\/\/i0.wp.com\/media.giphy.com\/media\/y5gweIjtEZ8d2\/source.gif?resize=500%2C350&#038;ssl=1\" width=\"500\" height=\"350\" \/><br \/>\n&nbsp;<\/p>\n<h2>L\u2019effet de halo, un biais \u00e0 double tranchant<\/h2>\n<p>&nbsp;<br \/>\nSi <strong>nous nous laissons ainsi manipuler par notre syst\u00e8me cognitif<\/strong>, c\u2019est que celui-ci va naturellement trier les informations qu\u2019il re\u00e7oit pour les faire co\u00efncider au maximum avec notre premi\u00e8re impression.<br \/>\n&nbsp;<br \/>\nAinsi, si une personne ou une marque pr\u00e9sente d\u2019embl\u00e9e une caract\u00e9ristique qui nous pla\u00eet, <strong>nous l\u2019envisagerons ensuite avec un a priori positif<\/strong>, m\u00eame si ses autres attributs d\u00e9couverts par la suite nous plaisent nettement moins. Le fait d\u2019appr\u00e9cier un certain produit d\u2019une marque donn\u00e9e peut ainsi nous conduire \u00e0 acheter ou \u00e0 recommander plus facilement d\u2019autres produits de la m\u00eame marque, m\u00eame si nous n\u2019avons jamais test\u00e9 directement ces derniers.<br \/>\n&nbsp;<br \/>\n<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/i0.wp.com\/media.giphy.com\/media\/RGpmiFuKd8RZTgE7Qw\/giphy.gif?resize=480%2C480&#038;ssl=1\" width=\"480\" height=\"480\" \/><br \/>\n&nbsp;<br \/>\nMais, <strong>l\u2019effet de halo peut aussi fonctionner dans l\u2019autre sens<\/strong> : une mauvaise premi\u00e8re impression ou une caract\u00e9ristique qui nous d\u00e9pla\u00eet particuli\u00e8rement pourra influencer n\u00e9gativement (et durablement !) notre jugement global. C\u2019est ce qui explique pourquoi nous avons parfois une mauvaise opinion d\u2019une personne que pourtant nous ne connaissons pas, simplement parce qu\u2019elle appartient \u00e0 un groupe que nous n\u2019appr\u00e9cions pas (\u00ab les amis de mes ennemis sont mes ennemis \u00bb, pourrait-on dire) !<br \/>\n&nbsp;<br \/>\n<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/i0.wp.com\/media.giphy.com\/media\/67SXeoc8RLwvqCwn2F\/giphy.gif?resize=400%2C320&#038;ssl=1\" width=\"400\" height=\"320\" \/><br \/>\n&nbsp;<\/p>\n<h2>Que retenir pour la formation ?<\/h2>\n<p>&nbsp;<br \/>\n<strong>&#8211; la premi\u00e8re impression est tr\u00e8s importante, ne la n\u00e9gligez pas !<\/strong><br \/>\nSi vous \u00eates formateur notamment, n\u2019oubliez pas que <strong>les premi\u00e8res minutes d\u2019\u00e9change sont d\u00e9terminantes<\/strong> et influencent tr\u00e8s fortement la perception g\u00e9n\u00e9rale que l\u2019on aura de vous : soignez votre attitude et votre discours, et optimisez votre support de formation pour mettre toutes les chances de votre c\u00f4t\u00e9 d\u2019emporter votre auditoire gr\u00e2ce \u00e0 votre charisme, votre humour, votre aisance ou votre ma\u00eetrise du sujet. Bref, mettez le paquet pour impressionner favorablement vos form\u00e9s, car si leur premi\u00e8re impression est mauvaise, vous risquez de ramer toute la journ\u00e9e !<br \/>\n&nbsp;<br \/>\n<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/i0.wp.com\/media.giphy.com\/media\/D16XHdsB1PBxm\/giphy.gif?resize=500%2C375&#038;ssl=1\" width=\"500\" height=\"375\" \/><br \/>\n&nbsp;<br \/>\n<strong>&#8211; \u00e0 l\u2019inverse, soyez aussi conscient(e) de l\u2019effet de halo et ne vous arr\u00eatez pas \u00e0 votre premier ressenti ! <\/strong><br \/>\nCe n\u2019est pas parce que le formateur a l\u2019air sinistre ou que son support est moche vieillot que la formation ne sera pas int\u00e9ressante, tout comme ce n\u2019est pas parce qu\u2019un form\u00e9 arrive en retard et vous pose d\u2019embl\u00e9e une question pi\u00e8ge qu\u2019il faut le prendre en grippe (quoique). <strong>Prenez du recul par rapport \u00e0 votre premi\u00e8re impression<\/strong> et donnez-lui une chance d\u2019\u00e9voluer pour ne pas passer b\u00eatement \u00e0 c\u00f4t\u00e9 d\u2019une personne int\u00e9ressante ou d\u2019une formation enrichissante !<br \/>\n&nbsp;<br \/>\n<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"size-medium aligncenter\" src=\"https:\/\/i0.wp.com\/media.giphy.com\/media\/jedneOuAEkcgg\/giphy.gif?resize=355%2C200&#038;ssl=1\" width=\"355\" height=\"200\" \/><br \/>\n&nbsp;<br \/>\nSources :<br \/>\n\u2022 <a href=\"http:\/\/www.toupie.org\/Biais\/Effet_halo.htm\" target=\"blank\" rel=\"noopener noreferrer\">http:\/\/www.toupie.org\/Biais\/Effet_halo.htm<\/a><br \/>\n\u2022 <a href=\"https:\/\/medium.com\/@j.laureau\/5-biais-cognitifs-qui-agissent-sunotre-perception-des-interfaces-27c3ecdf6373\" target=\"blank\" rel=\"noopener noreferrer\">https:\/\/medium.com\/@j.laureau\/5-biais-cognitifs-qui-agissent-sunotre-perception-des-interfaces-27c3ecdf6373<\/a><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\nPour lire tous les articles de la s\u00e9rie, c&rsquo;est ci-dessous :<br \/>\n<strong>&#8211; <a href=\"https:\/\/sydologie.com\/2019\/10\/les-biais-cognitifs-1-quest-ce-quun-biais-cognitif\/\"target=\"blank\">Les biais cognitifs #1 : Qu\u2019est-ce qu\u2019un biais cognitif ?<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2019\/12\/les-biais-cognitifs-2-leffet-de-halo\/\"target=\"blank\">Les biais cognitifs #2 : L\u2019effet de halo<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2020\/01\/les-biais-cognitifs-3-leffet-ikea\/\"target=\"blank\">Les biais cognitifs #3 : L\u2019effet IKEA<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2020\/02\/les-biais-cognitifs-4-le-biais-de-complexite\/\"target=\"blank\">Les biais cognitifs #4 : Le biais de complexit\u00e9<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2021\/02\/les-biais-cognitifs-5-la-malediction-de-la-connaissance\/\"target=\"blank\">LES BIAIS COGNITIFS #5 : LA MALEDICTION DE LA CONNAISSANCE<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2021\/04\/les-biais-cognitifs-6-le-biais-de-negativite\/\"target=\"blank\">LES BIAIS COGNITIFS #6 : LE BIAIS DE NEGATIVITE<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2022\/03\/les-biais-cognitifs-7-leffet-von-restorff\/\"target=\"blank\">LES BIAIS COGNITIFS #7 : L\u2019EFFET VON RESTORFF<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2022\/04\/les-biais-cognitifs-8-le-biais-de-statu-quo\/\"target=\"blank\">LES BIAIS COGNITIFS #8 : LE BIAIS DE STATU QUO<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2022\/12\/les-biais-cognitifs-9-la-loi-du-marteau\/\"target=\"blank\">LES BIAIS COGNITIFS #9 : LA LOI DU MARTEAU<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2022\/12\/les-biais-cognitifs-10-leffet-dunning-kruger\/\"target=\"blank\">LES BIAIS COGNITIFS #10 : L\u2019EFFET DUNNING-KRUGER<\/a><br \/>\n&#8211; <a href=\"https:\/\/sydologie.com\/2023\/07\/les-biais-cognitifs-11-lerreur-fondamentale-dattribution\/\"target=\"blank\">LES BIAIS COGNITIFS #11 : L\u2019ERREUR FONDAMENTALE D\u2019ATTRIBUTION<\/a><\/strong><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"Dans le pr\u00e9c\u00e9dent article, nous vous expliquions ce que sont les biais cognitifs et comment ils jouent avec nos perceptions. Cette semaine, d\u00e9couvrez comment fonctionne l\u2019un des biais cognitifs les plus r\u00e9pandus : l\u2019effet de halo ! &nbsp; Imaginez, vous \u00eates inscrit \u00e0 une formation, vous vous rendez sur place et, dans l\u2019ascenseur, vous croisez&#8230; <a class=\"view-article\" href=\"https:\/\/sydo.fr\/sydologie\/2019\/12\/les-biais-cognitifs-2-leffet-de-halo\/\">Voir l&rsquo;article<\/a>","protected":false},"author":34,"featured_media":12860,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[2],"tags":[818,1491,1040],"class_list":["post-8342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-le-mag","tag-neurosciences","tag-ressources-cognitives","tag-sciences"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Les biais cognitifs #2 : L&#039;effet de halo - Sydologie<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sydo.fr\/sydologie\/2019\/12\/les-biais-cognitifs-2-leffet-de-halo\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les biais cognitifs #2 : L&#039;effet de halo - Sydologie\" \/>\n<meta property=\"og:description\" content=\"Dans le pr\u00e9c\u00e9dent article, nous vous expliquions ce que sont les biais cognitifs et comment ils jouent avec nos perceptions. 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