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関連する概念動画

Somatosensory, Motor, and Association Cortex01:24

Somatosensory, Motor, and Association Cortex

908
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...
908
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

4.6K
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....
4.6K
Association Areas of the Cortex01:21

Association Areas of the Cortex

6.2K
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,...
6.2K
Somatosensation01:33

Somatosensation

38.5K
The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
38.5K
Lobes of the Cerebrum01:22

Lobes of the Cerebrum

1.0K
The cerebral cortex, a critical structure of the brain, is intricately divided into two hemispheres, each consisting of four distinct lobes: occipital, temporal, frontal, and parietal. These lobes function cooperatively to regulate various cognitive and sensory functions, forming the basis of our complex neural capabilities.
Frontal lobe
The frontal lobes, located behind the forehead, are the command center of our brain, controlling personality, intelligence, and voluntary muscle movements....
1.0K
Direct Motor Pathways01:11

Direct Motor Pathways

2.4K
The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
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Updated: Sep 10, 2025

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
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Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

Published on: August 1, 2018

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オブジェクト指向のアクション表現は,部分的に頭皮質に構築されています.

Leyla Roksan Caglar1,2, Jon Walbrin2, Emefa Akwayena1,3

  • 1Department of Psychology, Carnegie Mellon University, Pittsburgh, PA 15213.

Proceedings of the National Academy of Sciences of the United States of America
|August 20, 2025
PubMed
まとめ
この要約は機械生成です。

交差回路 (SMG) は,複雑なオブジェクト指向行動を表現するために,運動的シナジーを使用します. 視覚的なモデルとは異なり,SMGの活動は視覚的な類似性ではなく,運動特性によって駆動され,行動計画における役割をサポートします.

キーワード:
機能的なMRI物体をつかむ予測エンコーディング上関節道具の使用

さらに関連する動画

Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
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Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

Published on: August 12, 2019

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Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace
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Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace

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関連する実験動画

Last Updated: Sep 10, 2025

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
07:08

Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings

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Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping
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Translational Brain Mapping at the University of Rochester Medical Center: Preserving the Mind Through Personalized Brain Mapping

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Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace
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Design and Use of an Apparatus for Presenting Graspable Objects in 3D Workspace

Published on: August 8, 2019

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科学分野:

  • 神経科学
  • 認知科学
  • モーター コントロール

背景:

  • 下側頭葉は物体の操作に不可欠です
  • この領域内の超辺回路 (SMG) は,対象方向の行動を処理します.
  • 脳が複雑な行動を 表現する方法を理解することは 運動制御の鍵です

研究 の 目的:

  • SMGが複雑なオブジェクト指向行動をどのように表すかを調査する.
  • これらの表現の基本単位を形成するかどうかを判断する.
  • SMGにおける視覚的表現と運動的表現を区別する.

主な方法:

  • 経験的に定義された運動相乗効果を用いた線形符号化モデルを開発した.
  • これらのシナジーから構成的に複雑なアクションを構築します.
  • 画像計算可能な類似性モデル (AlexNet,ResNet50,VGG16) を使用して,SMGのモデル予測と視覚領域の予測を比較した.

主要な成果:

  • SMGにおける複雑なオブジェクト指向の動作のニューラル表現は,運動相乗効果モデルによって予測された.
  • 視覚類似モデル (AlexNet,ResNet50,VGG16) は視覚領域を予測したが,SMGは予測しなかった.
  • SMGの活動は,視覚的ではなく,運動的特性によって調節された.

結論:

  • SMGは,複雑なオブジェクト指向のアクションの表現を構築するために,基本的な単位として運動的シナジーを使用します.
  • これらの表現は行動に係るもので 視覚的に係るものではありません アプラクシアの研究と一致しています
  • 演技のシネージーは 言語生産の特徴に類似し 複雑な行動の構成要素となります