関連する実験動画
Updated: Feb 5, 2026

08:34
The Measurement and Treatment of Suppression in Amblyopia
Published on: December 14, 2012
50.6K
運動の音響的影響を抑制することを学ぶ皮質フィルター
David M Schneider1,2, Janani Sundararajan1, Richard Mooney3
1Department of Neurobiology, Duke University School of Medicine, Durham, NC, USA.
Nature
|September 14, 2018
まとめ
マウスは新しい音声仮想現実システムを使って 予測可能な音を抑制することを学びました この経験により 新しい音を検知する能力が向上し 適応性のある感覚フィルタリングメカニズムが 明らかになりました
科学分野:
- 神経科学
- 聴覚的知覚
- センサーモーター統合
背景:
- 動きに関連した (反応する) 音を予測することは,聴覚にとって極めて重要です.
- これらの音を抑えるための 神経回路は ほとんど不明です
研究 の 目的:
- 反応する音を抑制する神経機構を研究する.
- 予測可能な感覚運動体験の行動的結果を探求する.
主な方法:
- マウスのための音声仮想現実 (aVR) システムを開発した.
- 新しい音と動きを 結びつける訓練を受けたマウス
- 聴覚と運動皮質の活動と反応を分析した.
主要な成果:
- aVRは,再発周波数に対する聴覚皮質の反応を選択的に抑制します.
- 聴覚皮質の阻害性ニューロンの運動皮質の活性化が強化された.
- ネズミは動きの際に非反応音の検出を 強化した.
結論:
- 経験は 運動皮質を含む ダイナミックな感覚フィルターを形作ります
- このフィルターは 予測可能な音の影響を 選択的に抑制します
- アダプティブ・プラスティシティは 移動中の聴覚検出を 強化します
関連する概念動画
Timing and Consequences on Behavior
398
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
398
Passive Filters
1.0K
Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
1.0K
Active Filters
1.3K
Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
1.3K
Anatomical Movements
16.1K
Anatomical movements refer to the various actions or motions that can be performed by the body's joints and muscles. These movements are described using specific terms to provide a standardized way of discussing and understanding the range of motion at different joints.
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist,...
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist,...
16.1K
Avoidance Learning and Learned Helplessness
2.6K
Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
2.6K
The Movement of Organelles and Vesicles
6.5K
In eukaryotic cells, cytoskeletal filaments such as actin, microtubules, and intermediate filaments form a mesh-like cytoskeletal network. These filaments serve as tracks for transporting cellular cargo. Specialized motor proteins use the chemical energy stored in adenosine triphosphate (ATP) for this transport. During interphase, microtubules are polarized, with the plus-end towards the cell periphery and the minus-end towards the cell center. Two microtubule-associated motor proteins,...
6.5K

