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関連する概念動画

Vision01:24

Vision

59.4K
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.
59.4K
Visual System01:26

Visual System

1.7K
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...
1.7K
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

1.8K
Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
1.8K
Association Areas of the Cortex01:21

Association Areas of the Cortex

8.9K
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,...
8.9K
Visual Agnosia01:12

Visual Agnosia

981
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...
981
Color Vision01:24

Color Vision

1.4K
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
1.4K

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Updated: Jan 18, 2026

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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視覚的なオブジェクトは,ヘッド・ディレクション・コーディングを精製する.

Dominique Siegenthaler1,2,3,4, Henry Denny4, Sofía Skromne Carrasco4

  • 1Brain-Wide Networks Group, Department of Ophthalmology, University Medical Center Göttingen, Else Kröner Fresenius Center for Optogenetic Therapies, Göttingen, Germany.

Science (New York, N.Y.)
|September 11, 2025
PubMed
まとめ
この要約は機械生成です。

研究者はマウスの脳の領域が 視覚野ではなく 空間ナビゲーションに 反応することを発見しました これらのオブジェクトはヘッド・ディレクション (HD) 細胞に影響を与え,ナビゲーション行動に影響を与えます.

さらに関連する動画

A Method to Quantify Visual Information Processing in Children Using Eye Tracking
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A Method to Quantify Visual Information Processing in Children Using Eye Tracking

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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

Published on: November 14, 2018

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関連する実験動画

Last Updated: Jan 18, 2026

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

Published on: August 1, 2018

8.7K
A Method to Quantify Visual Information Processing in Children Using Eye Tracking
09:47

A Method to Quantify Visual Information Processing in Children Using Eye Tracking

Published on: July 9, 2016

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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
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Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior

Published on: November 14, 2018

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科学分野:

  • 神経科学
  • スペースナビ
  • 視覚処理

背景:

  • 動物は視覚的なシグナルを使って 航海します
  • ネズミの空間ナビゲーションにおける視覚オブジェクト処理の 神経的基礎は不明である.
  • オブジェクトを好む脳の領域を 特定することは,ナビゲーションを理解するために 極めて重要です.

研究 の 目的:

  • マウスで視覚的な物体によって活性化される脳の領域を特定するためです
  • 空間ナビゲーションの処理における視覚的なオブジェクトの役割を調査する.
  • 頭の方向 (HD) 細胞に対する視覚的オブジェクトの影響を調べる.

主な方法:

  • 機能性超音波画像で脳活動を検出する
  • 無傷の物体に対する反応と 混同された画像の比較
  • ポストスビキュラムの 電気生理学的記録

主要な成果:

  • 視覚的皮質ではなく 空間的ナビゲーション領域が 対象を好むことが示されました
  • ヘッド・ディレクション (HD) システムのハブであるポストスビキュラムは 視覚的な物体に反応した.
  • 視覚的なオブジェクトはHD細胞の活動を調節し 調整された細胞の発火を増加させ 他の細胞の発火を減少させました

結論:

  • 視覚的オブジェクトの空間ナビゲーションに 関わる特定の脳領域
  • ヘッド・ディレクション・システムは 視覚的なオブジェクト情報によって影響を受けます
  • 視覚的なオブジェクトは方向とナビゲーションの 神経表現を調節する役割を果たします