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関連する概念動画

Somatosensation01:33

Somatosensation

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.
The Spinal Cord01:54

The Spinal Cord

The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
Neurulation01:30

Neurulation

Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the anterior...
Sensory Functions of the Skin01:16

Sensory Functions of the Skin

The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
Sympathetic Pathways: Sympathetic Chain Ganglia01:20

Sympathetic Pathways: Sympathetic Chain Ganglia

The sympathetic chain ganglia, also known as the sympathetic trunk ganglia or paravertebral ganglia, are a series of ganglia located bilaterally on either side of the spinal column. These ganglia serve as relay stations for the sympathetic nervous system. Preganglionic neurons originating in the spinal cord project their axons to the sympathetic chain ganglia. Within the ganglia, these preganglionic fibers synapse with postganglionic neurons.The postganglionic neurons of the sympathetic trunk...
Encoding01:19

Encoding

Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...

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関連する実験動画

Updated: Jul 5, 2026

Labeling of Single Cells in the Central Nervous System of Drosophila melanogaster
10:33

Labeling of Single Cells in the Central Nervous System of Drosophila melanogaster

Published on: March 4, 2013

猿の下側側頭葉皮質の単一のニューロンによるノルムベースの顔エンコーディング.

David A Leopold1, Igor V Bondar, Martin A Giese

  • 1Max Planck Institut für biologische Kybernetik, Spemannstrasse 38, 72076 Tübingen, Germany. leopoldd@mail.nih.gov

Nature
|July 25, 2006
PubMed
まとめ
この要約は機械生成です。

研究者らは,マカク類の猿の前部下側頭葉皮質のニューロンが,顔認識のコア次元に調節されていることを発見しました. これは,神経応答が顔と内部規範を比較することで形成され,脳活動と顔認識の心理的モデルを結びつけることを示唆しています.

さらに関連する動画

Flat Mount Imaging of Mouse Skin and Its Application to the Analysis of Hair Follicle Patterning and Sensory Axon Morphology
13:58

Flat Mount Imaging of Mouse Skin and Its Application to the Analysis of Hair Follicle Patterning and Sensory Axon Morphology

Published on: June 25, 2014

Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn
07:12

Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn

Published on: May 23, 2025

関連する実験動画

Last Updated: Jul 5, 2026

Labeling of Single Cells in the Central Nervous System of Drosophila melanogaster
10:33

Labeling of Single Cells in the Central Nervous System of Drosophila melanogaster

Published on: March 4, 2013

Flat Mount Imaging of Mouse Skin and Its Application to the Analysis of Hair Follicle Patterning and Sensory Axon Morphology
13:58

Flat Mount Imaging of Mouse Skin and Its Application to the Analysis of Hair Follicle Patterning and Sensory Axon Morphology

Published on: June 25, 2014

Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn
07:12

Studying the Coding Profiles of Somatic Stimulation on Cardiac-locked Neuronal Responses in the Rat Spinal Dorsal Horn

Published on: May 23, 2025

科学分野:

  • 神経科学は神経科学である.
  • コグニティブ・サイエンス コグニティブ・サイエンス
  • プライマートの視力

背景:

  • マカク類の猿の下側側頭葉皮質には,顔に選択的に反応するニューロンが含まれています.
  • これらの顔反応性ニューロンは,スケールの変化や網膜の画像の詳細に対する限られた感受性を示します.
  • 人とヒト以外の霊長類が共有する重要な認知機能は,アイデンティティと表現を含む馴染みのある顔の認識です.

研究 の 目的:

  • マカク類の猿の前側下側頭皮質の顔反応ニューロンのチューニング特性を調査する.
  • これらのニューロンが,顔認識の基本的な次元に敏感であるかどうかを判断する.
  • ニューラル・チューニングを顔認識の心理モデルとリンクする.

主な方法:

  • 人間の心理物理学の研究から適応した,規範に基づく漫画化フレームワークを使用した.
  • フォトリアルな人間の顔に身元情報を操作した.
  • 前頭下側頭皮質のニューロンの反応をこれらの操作された顔に記録しました.

主要な成果:

  • 前頭下側頭皮質の顔反応神経は,最も頻繁に平均的な,アイデンティティ-曖昧な顔にチューニングされていました.
  • このチューニングは,ニューロンが顔のコア感知次元に沿った変化に敏感であることを示唆しています.
  • ニューロンの反応は,顔認識の規範に基づくモデルと一致する.

結論:

  • 前側下側頭葉皮質のニューラルチューニングは,顔認識の基本的な次元を反映しています.
  • 顔選択反応は,受信した顔の情報を内部参照または標準と比較することで形成される可能性が高い.
  • これらの発見は,ニューロンのメカニズムと顔のアイデンティティ処理に関する心理学的理論の間のギャップを埋めています.