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関連する概念動画

Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

8.5K
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....
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Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

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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...
3.1K
Association Areas of the Cortex01:21

Association Areas of the Cortex

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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,...
10.0K
Visual Agnosia01:12

Visual Agnosia

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Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
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Neural Circuits01:25

Neural Circuits

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Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
3.0K
Somatosensation01:33

Somatosensation

44.0K
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.
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Reversible Cooling-induced Deactivations to Study Cortical Contributions to Obstacle Memory in the Walking Cat
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脳の場所選択性皮質における障害物コーディング

Dongheon Kham1, Yoonjung Lee2, Soojin Park1

  • 1Department of Psychology, Yonsei University, Seoul, Republic of Korea.

Behavioural brain research
|February 28, 2026
PubMed
まとめ
この要約は機械生成です。

後頭葉の場所領域（OPA）は、シーンとオブジェクトの情報を統合してナビ可能なパスを認識します。効果的なナビゲーションのために、障害物だけでなく機能的なナビ可能性を表します。

キーワード:
障害物後頭葉の場所領域シーン選択性領域空間ナビゲーションfMRI

さらに関連する動画

Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
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Investigating Object Representations in the Macaque Dorsal Visual Stream Using Single-unit Recordings
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Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
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科学分野:

  • 神経科学;認知科学;視覚知覚

背景:

  • 複雑な環境のナビゲーションは、障害物のようなナビゲーション上の制約を特定することに依存しています。;シーンにおけるパスとオブジェクトの相互作用を表す神経基盤はよく理解されていません。

研究 の 目的:

  • シーン選択性の脳領域、特に後頭葉の場所領域（OPA）が、パスとオブジェクトのアライメントとそのナビゲーション上の意義をエンコードするかどうかを調査すること。;OPAが障害物とそのナビゲーションへの影響をどのように表すかを決定すること。

主な方法:

  • 3つの実験全体で機能的磁気共鳴画像法（fMRI）を利用しました。;マルチボクセルパターン分類と表現類似性分析を採用しました。;障害物の存在のデコーディングをテストし、競合する表現モデルを比較しました。

主要な成果:

  • OPAは、パスとオブジェクトのアライメントに基づいて、障害のあるパスと障害のないパスをうまく区別しました。;高次のシーン情報が除去されると、初期視覚野とは異なり、OPAでの障害物デコーディングは消失しました。;OPAのニューラルパターンは、機能的なナビ可能性の表現を示唆する、通過の利用可能性を最もよく反映しました。

結論:

  • OPAは、パスとオブジェクトの情報を統合して、アクション関連の空間構造を表します。;OPAの役割は、柔軟でインタラクションによって定義されたナビゲーション上の制約を表現することにまで及びます。;この研究は、ナビ可能な空間を表すことに対するOPAの貢献を明らかにします。