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関連する概念動画

Role of Shaping in Operant Conditioning01:19

Role of Shaping in Operant Conditioning

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Shaping is a technique used in operant conditioning to train complex behaviors by rewarding successive approximations toward the target behavior. This method is necessary because organisms are unlikely to perform complex behaviors spontaneously. Instead, shaping breaks down the desired behavior into small, manageable steps.
The steps involved in shaping begin with reinforcing any response that resembles the desired behavior. For example, parents might praise a child for picking up one toy. As...
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Encoding01:19

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Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
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First Impression01:09

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First impressions play a crucial role in social perception, shaping how individuals assess others in professional, academic, and interpersonal contexts. Psychological research highlights the significance of cognitive biases, such as the primacy and recency effects, which influence how people interpret and recall information.The Primacy Effect and Cognitive AnchoringThe primacy effect describes the tendency for initial information to impact judgment disproportionately. When individuals encounter...
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Forgetting01:21

Forgetting

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Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
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Chunking and Rehearsal in Sensory Memory01:22

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Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of...
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Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now? 
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Automated Visual Cognitive Tasks for Recording Neural Activity Using a Floor Projection Maze
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記憶の形成：最初のエンコーディングにおける初期予測誤差

Nina Liedtke1, Marius Boeltzig1, Sophie Siestrup1

  • 1Department of Psychology, University of Münster, Fliednerstraße 21, 48149 Münster, Germany; Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Münster, Germany.

NeuroImage
|December 19, 2025
PubMed
まとめ
この要約は機械生成です。

個々の経験から生じる初期予測誤差（PE）は、実験的PEと同様の方法で記憶エンコーディングに影響を与えます。これらの発見は、記憶研究において個々のPEを考慮することの重要性を強調しています。

キーワード:
エピソード記憶fMRI記憶の安定性予測誤差

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Last Updated: Jan 8, 2026

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科学分野:

  • 神経科学
  • 認知心理学
  • 記憶研究

背景:

  • 脳は継続的に入ってくる感覚情報を予測しています。
  • 予測誤差（PE）は予期しない入力を知らせ、記憶エンコーディングを強化します。
  • 個々の要因に基づく新規刺激への初期曝露によって誘発されるPEが記憶に及ぼす役割は不明なままです。

研究 の 目的:

  • 初期PEの神経および記憶効果を調査すること。
  • 初期PEと実験的に誘発されたPEとの相互作用を調べること。
  • 予測誤差処理に対する個々の知識と信念の影響を理解すること。

主な方法:

  • 聴覚刺激提示（自然な対話）中のfMRIスキャン。
  • 対話修正による初期PEの誘発、それに続く実験的PEの誘発。
  • 元の刺激と修正された刺激の認識記憶テスト。

主要な成果:

  • 初期PEは、実験的PEと同様に、トップダウン予測再関与を低下させ、ボトムアップ聴覚野の活性化を増加させました。初期および実験的PEの両方の意味的側面は学習を改善しました。下前頭回（IFG）の活性化は、現在アクティブな表現へと記憶想起をバイアスしました。

結論:

  • 記憶エンコーディングにおける初期PEの存在と重要性についての最初の証拠を提供します。
  • 個々の経験に影響される初期PEが記憶プロセスに影響を与えることを示唆しています。
  • エピソード記憶と予測誤差を研究するパラダイムに個々のPEを組み込むことを推奨します。