Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

8.0K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
8.0K
Vision01:24

Vision

48.5K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
48.5K
Visual System01:26

Visual System

2.3K
Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
2.3K
Parallel Processing01:20

Parallel Processing

941
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
941
Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

4.9K
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
4.9K
Association Areas of the Cortex01:21

Association Areas of the Cortex

10.1K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
10.1K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Nos1 neurons in the paraventricular hypothalamic area modulate lipid metabolism via the sympathetic nervous system in male mice.

Nature communications·2026
Same author

Tirzepatide for weight and behavior management in a patient with Smith-Magenis syndrome.

JCEM case reports·2026
Same author

A multimodal adaptive optical microscope for in vivo imaging from molecules to organisms.

Nature methods·2026
Same author

Teneurin-3 and latrophilin-2 are required for somatotopic map development and somatosensory topognosis.

Current biology : CB·2026
Same author

Ten3-Lphn2-mediated target selection across the extended hippocampal network demonstrates a repeated strategy for circuit assembly.

Current biology : CB·2026
Same author

Inverse expression of Ten3 and Lphn2 across the developing mouse brain suggests a global strategy for circuit assembly.

Current biology : CB·2026

関連する実験動画

Updated: Apr 26, 2026

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
09:37

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

Published on: July 5, 2015

8.8K

選択的注意. 選択的な注意. 視野皮質の処理を上から下に調節するための長距離および局所回路.

Siyu Zhang1, Min Xu1, Tsukasa Kamigaki1

  • 1Division of Neurobiology, Department of Molecular and Cell Biology, Helen Wills Neuroscience Institute, Howard Hughes Medical Institute, University of California, Berkeley, CA 94720, USA.

Science (New York, N.Y.)
|August 9, 2014
PubMed
まとめ

帯状皮質 (Cg) は,局所回路を活性化することによって,主視皮質 (V1) の視覚処理を強化します. この上から下への調節は視覚的差別を改善し,中心から周りの効果のために特定のインターニューロンタイプを伴う.

さらに関連する動画

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
06:46

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Published on: March 18, 2019

8.8K
Cross-Modal Multivariate Pattern Analysis
13:51

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

21.0K

関連する実験動画

Last Updated: Apr 26, 2026

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control
09:37

Measurement of Neurophysiological Signals of Ignoring and Attending Processes in Attention Control

Published on: July 5, 2015

8.8K
Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
06:46

Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity

Published on: March 18, 2019

8.8K
Cross-Modal Multivariate Pattern Analysis
13:51

Cross-Modal Multivariate Pattern Analysis

Published on: November 9, 2011

21.0K

科学分野:

  • 神経科学は神経科学である.
  • センサリー処理 センサリー処理
  • コルティカル・サーキット

背景:

  • トップダウンモジュレーションは,タスクに関連した情報に感覚処理を集中させるのに不可欠です.
  • 前頭皮質は感覚領域を調節する役割を果たしますが,特定のメカニズムは完全に理解されていません.

研究 の 目的:

  • 主要視野皮質 (V1) の感覚処理に帯状皮質 (Cg) の影響を調査する.
  • Cg媒介上下調節の基礎となる細胞および回路のメカニズムを解明する.

主な方法:

  • オプトジェネティクスを利用してCgニューロンとその投影をV1.1で活性化する.
  • V1ニューロンの応答を記録し,視覚的差別のパフォーマンスを評価した.
  • 特定のGABAergicインターニューロンサブタイプ (ソマトスタチン陽性および血管活性腸ペプチド陽性) の役割を調べました.

主要な成果:

  • 帯状皮質の活性化により,V1ニューロン反応が強化され,視覚的差別が改善されました.
  • V1で誘発された中心周回変調における焦点Cg軸突の活性化:反応の場所での増加と周りの領域での減少.
  • ソマトスタチン陽性インターニューロンは周囲抑制を媒介し,血管活性腸ペプチド陽性インターニューロンは中心促進を媒介した.

結論:

  • 帯状皮質からの長距離投影は,主視皮質の活動を強力に調節する.
  • この調節は,V1.1内のローカルGABAergicマイクロ回路の活性化によって達成されます.
  • 発見は,異なるインターニューロン集団を含む感覚処理のための空間特有のトップダウン制御機構を明らかにします.