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関連する概念動画

Role of Hippocampus in Memory01:19

Role of Hippocampus in Memory

276
The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...
276
Higher Mental Functions of Brain: Learning and Memory01:26

Higher Mental Functions of Brain: Learning and Memory

837
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
837
Storage01:23

Storage

87
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...
87
Mnemonic Devices01:23

Mnemonic Devices

85
Mnemonic devices are cognitive tools that facilitate memory retention by linking new information to familiar patterns or organizational strategies. These techniques are beneficial for remembering complex or lengthy sets of information by simplifying and structuring them in easily retrievable ways.
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
85
Associative Learning01:27

Associative Learning

412
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...
412
Implicit Memories01:24

Implicit Memories

135
Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
135

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関連する実験動画

Updated: Jul 12, 2025

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents
09:01

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

Published on: July 8, 2015

12.6K

アソシエティブと予測性ヒポカンプスのコードは,記憶による行動をサポートします.

Can Liu1, Ralitsa Todorova1, Wenbo Tang1

  • 1Department of Neurobiology and Behavior, Cornell University, Ithaca, NY, USA.

Science (New York, N.Y.)
|October 19, 2023
PubMed
まとめ

この研究では 連続的な場所細胞活動が 予測記憶には重要ですが 関連学習には重要ではありません 乱れたシーケンスで 空間ナビゲーションの予測が損なわれ アソシエティブな記憶は 完ぺきなままでした

科学分野:

  • 神経科学
  • 認知科学
  • 計算神経科学

背景:

  • エピソード記憶は 空間・時間的な文脈と アイテム情報を統合します
  • 予測のための内部世界モデルは 記憶から生成されます
  • 関連記憶と予測記憶の仕組みは 明らかになっていません

研究 の 目的:

  • 関連性および予測性記憶におけるヒポカンプスコードの 異なる役割を調査する.
  • 記憶によるナビゲーションと予測をサポートする神経メカニズムを解明する.

主な方法:

  • 空間ナビゲーション中のラットの場所細胞の配列構造の光遺伝的操作.
  • パートルバーションは軌道配列に重点を置いて,グローバルネットワークのダイナミクスを保存しました.
  • 軌道再現の評価,予測表現の開発,そして関連学習.

主要な成果:

  • 混乱する場所の細胞の配列は 軌道の再現と予測表現を廃止しました
  • 予測表現の発達障害は,最適な航路の学習に欠陥をもたらしました.
  • 報酬コンテキスト関連学習と場所細胞アセンブリ再活性化は,操作によって影響を受けませんでした.

さらに関連する動画

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat
08:37

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat

Published on: April 24, 2009

11.9K
Combined In Vivo Anatomical and Functional Tracing of Ventral Tegmental Area Glutamate Terminals in the Hippocampus
09:36

Combined In Vivo Anatomical and Functional Tracing of Ventral Tegmental Area Glutamate Terminals in the Hippocampus

Published on: September 9, 2020

3.9K

関連する実験動画

Last Updated: Jul 12, 2025

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents
09:01

The Double-H Maze: A Robust Behavioral Test for Learning and Memory in Rodents

Published on: July 8, 2015

12.6K
A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat
08:37

A Video Demonstration of Preserved Piloting by Scent Tracking but Impaired Dead Reckoning After Fimbria-Fornix Lesions in the Rat

Published on: April 24, 2009

11.9K
Combined In Vivo Anatomical and Functional Tracing of Ventral Tegmental Area Glutamate Terminals in the Hippocampus
09:36

Combined In Vivo Anatomical and Functional Tracing of Ventral Tegmental Area Glutamate Terminals in the Hippocampus

Published on: September 9, 2020

3.9K

結論:

  • アソシエティブ (共活性) と予測性 (シーケンス) のヒッポキャンパスのコード間のメカニズム的な解離が示された.
  • 場所のセル内の連続的な活動は,予測可能な空間表現とメモリによるナビゲーションに不可欠です.
  • ヒッポキャンパスの機能は 情報を結びつけ 予測を起こすための 異なるコードを含んでいます