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  <title id="t-etud">Synthèse des trois grandes études sur l'impact cognitif de l'IA générative entre 2025 et 2026</title>
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  <text x="30" y="35" class="title">Trois études clés sur l'usage LLM et la cognition · 2025-2026</text>

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  <text x="165" y="92" text-anchor="middle" class="head-lab">MIT Media Lab</text>
  <text x="165" y="114" text-anchor="middle" class="head-sub">Kosmyna et al. · juin 2025</text>
  <text x="50" y="155" class="lab-row">Méthode</text>
  <text x="50" y="173" class="desc">EEG · essay writing · 54 participants</text>
  <text x="50" y="193" class="desc">3 groupes : LLM / Search / Brain-only</text>
  <text x="50" y="222" class="lab-row">Résultat clé</text>
  <text x="50" y="245" class="desc">Connectivité cérébrale la plus</text>
  <text x="50" y="263" class="desc">faible chez utilisateurs LLM.</text>
  <text x="50" y="295" class="lab-row">Insight marquant</text>
  <text x="50" y="318" class="desc">Peu de mémorisation : essais</text>
  <text x="50" y="336" class="desc">non intégrés aux réseaux mémoire.</text>

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  <text x="450" y="92" text-anchor="middle" class="head-lab">Microsoft Research</text>
  <text x="450" y="114" text-anchor="middle" class="head-sub">Lee et al. · avril 2025</text>
  <text x="335" y="155" class="lab-row">Méthode</text>
  <text x="335" y="173" class="desc">319 professionnels</text>
  <text x="335" y="193" class="desc">936 cas d'usage IA analysés</text>
  <text x="335" y="222" class="lab-row">Résultat clé</text>
  <text x="335" y="245" class="desc">Plus de confiance en l'IA</text>
  <text x="335" y="263" class="desc">= moins d'esprit critique.</text>
  <text x="335" y="295" class="lab-row">Nuance</text>
  <text x="335" y="318" class="desc">Tâches à fort enjeu : effort</text>
  <text x="335" y="336" class="desc">critique préservé ou renforcé.</text>

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  <text x="735" y="92" text-anchor="middle" class="head-lab">MIT · Harvard · MS</text>
  <text x="735" y="114" text-anchor="middle" class="head-sub">Méta-revue 2024-2026</text>
  <text x="620" y="155" class="lab-row">Productivité</text>
  <text x="735" y="190" text-anchor="middle" class="big">+14 à 40 %</text>
  <text x="620" y="222" class="lab-row">Contrepartie</text>
  <text x="620" y="245" class="desc">Érosion mesurée du</text>
  <text x="620" y="263" class="desc">raisonnement critique.</text>
  <text x="620" y="295" class="lab-row">Effet résiduel</text>
  <text x="620" y="318" class="desc">Le déchargement cognitif</text>
  <text x="620" y="336" class="desc">persiste après retrait de l'IA.</text>
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