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関連する概念動画

Behaviorism01:28

Behaviorism

2.4K
The field of behaviorism was pioneered by figures such as Ivan Pavlov, John B. Watson, and B.F. Skinner fundamentally shifted the focus of psychology to the observable and controllable aspects of human and animal behavior. This shift marked a critical evolution in the discipline, emphasizing scientific rigor and experimental methodology.
The core premise of behaviorism is its focus on observable behavior rather than internal thoughts or feelings. This approach argues that true scientific...
2.4K
Purposive Learning01:22

Purposive Learning

180
E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a...
180
Innate Behavior01:10

Innate Behavior

Innate BehaviorInnate behavior is a type of instinctive action that animals are born knowing how to perform, without needing to learn or practice. Examples include baby sea turtles heading straight for the ocean after hatching or spiders spinning webs without instruction. These behaviors are hardwired into their brains and bodies to support survival. Common innate behaviors include migration, hibernation, feeding reflexes, and courtship dances, which are automatic responses that help animals...
Reinforcement Schedules01:24

Reinforcement Schedules

227
Positive reinforcement is a powerful method for teaching new behaviors to both animals and humans. B.F. Skinner demonstrated this with his experiments using rats in a Skinner box. When a rat pressed a lever, it received a food pellet. This immediate reward encouraged the rat to repeat the behavior. This method, where a reward follows every instance of the behavior, is known as continuous reinforcement. It is highly effective for establishing new behaviors quickly.
Once a behavior is learned,...
227
Operant Conditioning01:21

Operant Conditioning

1.7K
Operant conditioning, a key concept in behavioral psychology, involves using reinforcement and punishment to alter the likelihood of a behavior being repeated. B.F. introduced this type of conditioning. Skinner focused on voluntary behaviors and the consequences that follow them, influencing whether these behaviors will be strengthened or diminished.
Reinforcement in operant conditioning can be positive or negative, both of which serve to increase the likelihood of a behavior. Positive...
1.7K
Law of Effect01:06

Law of Effect

1.5K
B.F. Skinner, a prominent figure in behavioral psychology, introduced operant conditioning by emphasizing the role of consequences in shaping behavior. This theory builds upon the law of effect proposed by Edward Thorndike, which posits that behaviors followed by satisfying outcomes are likely to be repeated. In contrast, those followed by unsatisfying outcomes are less likely to recur.
Edward Thorndike's foundational work involved studying learning in animals, particularly using puzzle...
1.5K

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関連する実験動画

Updated: Aug 14, 2025

Operant Sensation Seeking in the Mouse
08:39

Operant Sensation Seeking in the Mouse

Published on: November 10, 2010

13.0K

自発的な行動は,明示的な報酬なしの強化によって構造化されます.

Jeffrey E Markowitz1,2, Winthrop F Gillis1, Maya Jay1

  • 1Department of Neurobiology, Harvard Medical School, Boston, MA, USA.

Nature
|January 18, 2023
PubMed
まとめ
この要約は機械生成です。

脳におけるドーパミンの変動

さらに関連する動画

Pavlovian Conditioned Approach Training in Rats
06:57

Pavlovian Conditioned Approach Training in Rats

Published on: February 4, 2016

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Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
09:12

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats

Published on: March 17, 2019

9.5K

関連する実験動画

Last Updated: Aug 14, 2025

Operant Sensation Seeking in the Mouse
08:39

Operant Sensation Seeking in the Mouse

Published on: November 10, 2010

13.0K
Pavlovian Conditioned Approach Training in Rats
06:57

Pavlovian Conditioned Approach Training in Rats

Published on: February 4, 2016

11.0K
Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats
09:12

Three Laboratory Procedures for Assessing Different Manifestations of Impulsivity in Rats

Published on: March 17, 2019

9.5K

科学分野:

  • 神経科学
  • 動物 の 行動

背景:

  • 動物の自発的な行動は 脳が配列化した行動モジュールから成り立っています
  • 自然主義的で自己動機づけの 行動を制御する 神経機構は不明のままです

研究 の 目的:

  • ドロソラテラル・ストライアタム (DLS) でのドーパミンの役割を調べる
  • ドーパミンの変動が 行動シーケンスやモジュールの表現を どう形作るのかを理解する

主な方法:

  • 野外探査の際に光学記録と光遺伝学的操作をマウスで利用した.
  • ドーパミンのレベルを 正確に制御するために カリブレーションされた閉環光遺伝学

主要な成果:

  • ドーパミンの変動は,自発的な行動モジュール配列と相関しています.
  • DLSドーパミンは シーケンスの変化や 時間の経過とともにモジュールの強化や 行動力に影響します
  • オプトジェネティックドーパミン操作効果は,内生ドーパミン関係によって予測され,モジュールと個体によって変化した.

結論:

  • DLSのドーパミンは学習信号として作用し,シークエンスの生成中にドーパミンを最大限に導きます.
  • 構造化されたタスクに関与する回路が 無制限で自発的な行動を形作ることを示唆しています