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Schemata01:17

Schemata

214
A schema is a mental construct that organizes related concepts, allowing the brain to process information efficiently. Upon activation, schemata facilitate assumptions about people or objects.
Two types of schemata are:
214
Schemas01:42

Schemas

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A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
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Impact of Schemas01:30

Impact of Schemas

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Schemas are cognitive structures that provide a framework for interpreting and organizing social information. They help individuals navigate complex environments by offering expectations about people, events, and behaviors. Schemas influence attention, encoding, and retrieval processes, thereby shaping the entire trajectory of information processing in social contexts.Attention and Cognitive LoadDuring initial attention, schemas function as filters that prioritize schema-consistent information,...
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Observational Learning01:12

Observational Learning

644
Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
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Storage01:23

Storage

228
A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
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Associative Learning01:27

Associative Learning

884
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
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An Operant Intra-/Extra-dimensional Set-shift Task for Mice
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An Operant Intra-/Extra-dimensional Set-shift Task for Mice

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学習中に軌道前部の集合体におけるスキーマ表現の進化

Jingfeng Zhou1, Chunying Jia2, Marlian Montesinos-Cartagena3

  • 1Intramural Research Program of the National Institute on Drug Abuse, Baltimore, MD, USA. jingfeng.zhou@nih.gov.

Nature
|December 28, 2020
PubMed
まとめ
この要約は機械生成です。

ネズミは脳前皮質で 神経的なスキームを開発し 似たような問題に対して学習を一般化します この脳のメカニズムは 共通の構造を認識することで 学習のスピードを上げ 認知の柔軟性についての洞察を 提供します

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Appetitive Associative Olfactory Learning in Drosophila Larvae
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In Vivo Optical Calcium Imaging of Learning-Induced Synaptic Plasticity in Drosophila melanogaster
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関連する実験動画

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Appetitive Associative Olfactory Learning in Drosophila Larvae
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科学分野:

  • 神経科学
  • 認知科学
  • 計算神経科学

背景:

  • 人間や動物は新しい状況に学習した情報を一般化します これは効率的な学習と問題解決に不可欠なプロセスです
  • この一般化の鍵となるのは,スキーマ (知識の内部表現) を学び,展開する能力です.
  • しかし,スキーマ形成と利用の基礎となる神経メカニズムは,ほとんど不明のままである.

研究 の 目的:

  • ニューラル・スキーマの形成を通して,以前の知識がどのように学習を容易にするかを調査する.
  • 学習した情報を一般化するのに 関わる脳の領域を特定する.
  • 学習中のスキーマの進化の基礎にある神経のダイナミクスを探求する.

主な方法:

  • ネズミの脳前皮質から ニューラル活動を記録した
  • ネズミは似たような 匂いのシーケンス学習問題を 習得した.
  • 神経コードのパターンと次元縮小を特定するために 神経アンサンブル活動を分析した.

主要な成果:

  • 学習が進むにつれ 低次元の神経コードに収束します
  • この新しい神経コードは 学習課題の共通の構造要素を 表しています
  • この神経コードの進化は 学習とともに加速し 効率的なスキーマ形成を示しています

結論:

  • 複雑な認知操作をサポートするために,軌道前皮質内の神経スキーマの形成と活発な使用を証明します.
  • 学習と認知の一般化における 軌道前皮質の役割を強調しています
  • 集合分析は複雑な認知機能を研究するための貴重なツールであることを示唆しています.