コメント on "視覚皮質の指向列の進化における普遍性"

Yicong Meng¹, Shigeru Tanaka, Chi-Sang Poon

¹Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Science (New York, N.Y.)

|April 28, 2012

まとめ

哺乳類の脳におけるピンホイール密度の普遍的な定数については,議論されている. よりシンプルな脳サイズ-ピンホイール密度スケーリング法は,種間のオリエンテーションマップをより良く予測します.

科学分野:

神経科学は神経科学である.
計算神経科学とは
システム神経科学システム神経科学

背景:

哺乳類の視覚皮質における方向図の組織化は,神経科学の根本的な問題である.
カシュブエ et al. カシュブエ et al. カシュブエ et al. 彼は,長距離接続に基づいたピンホイール密度の普遍定数 (π) を予測するモデルを提案した.

研究の目的:

Kaschube et al.の結論に異議を唱えるために. 普遍的なピンホイール密度に関して.
オリエンテーションマップの組織を説明する代替モデルを提案する.

主な方法:

3種類の哺乳類のピンホイール密度データを分析した.
提案された脳サイズ-ピンホイール密度スケーリング法を既存のモデルと比較.

主要な成果:

ピンホイール密度の普遍定数 π はサポートされていません.
脳のサイズとピンホイール密度に関する単純なスケーリング法則は,効率的にオリエンテーションマップの組織を予測します.

結論:

提案された脳サイズ-ピンホイール密度スケーリング法則は,方向図に対するより控えめな説明を提供します.
この発見は,視覚皮質の自己組織化および非組織化神経構造を理解するための意味を持つ.

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