可靠的皮层表示的发展性出现
Sigrid Trägenap1,2,3, David E Whitney4, David Fitzpatrick5
1Frankfurt Institute for Advanced Studies (FIAS), Frankfurt, Germany.
Nature neuroscience
|February 5, 2025
概括
新形成的视觉皮层网络最初显示出可变的活动. 凭借经验,这些网络开发出可靠的表示,展示了在感官处理中至关重要的自然培养转变.
科学领域:
- 神经科学是一个神经科学.
- 发育神经科学的发展神经科学.
- 系统神经科学 系统神经科学
背景情况:
- 皮层网络很早就开发出基本结构,在感官输入之前.
- 从内生网络活动过渡到经验驱动的感官表现还不清楚.
研究的目的:
- 研究视觉皮层发育中的"自然养育转化".
- 了解皮质网络如何适应单个试验级别的感官体验.
主要方法:
- 在鹿视觉皮层的慢性体内成像.
- 在眼睛打开前后分析网络活动模式.
- 计算建模以阐明表示形式的形成.
主要成果:
- 眼睛打开后,视觉刺激引起了可变的模块化网络活动,阻碍了刺激歧视.
- 最初的刺激唤起的模式不同于眼睛打开前的自发活动.
- 一周的视觉体验导致可靠的,低维的刺激表现和重组的自发活动.
结论:
- 视觉体验迅速重塑皮质网络活动和表现.
- 可靠的视觉表现来自于前和循环网络的对齐,以视觉输入为指导.
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