边界所有权调整决定了的视觉系统中V4和V1之间的连接
Danique Jeurissen1,2,3, Anne F van Ham1, Amparo Gilhuis1
1Department of Vision & Cognition, Netherlands Institute for Neuroscience, Meibergdreef 47, Amsterdam, the Netherlands.
Nature communications
|October 22, 2024
概括
高视觉区域向主要视觉皮层 (V1) 发送反,以增强图形背景调制 (FBM). V4中的边界所有权 (BO) 选择性单元格提供了这种反,积极的反是向偏好的数字和负面的反.
科学领域:
- 神经科学是一个神经科学.
- 视觉感知 视觉感知 视觉感知
- 皮层连接 皮层连接
背景情况:
- 皮层反连接很丰富,但它们的逻辑不清楚.
- 从较高视觉区域到主要视觉皮层 (V1) 的反会调节图像背景感知 (FBM).
- 像V4这样的地区的边境所有权 (BO) 选择性细胞是这种反的来源.
研究的目的:
- 为了研究V4和V1细胞之间的连接.
- 了解BO调节V4细胞在FBM中的作用.
- 为了建模FBM底层的反机制.
主要方法:
- 使用噪声相关性检查了V4-V1细胞连接.
- 使用微刺激来估计连接强度.
- 开发了一个模型来测试反连接方案.
主要成果:
- 连接模式与提供反的BO调节V4单元一致.
- 反是积极的方向首选的数字和负面的相反的方向.
- 这种连接模型成功地重现了观察到的FBM模式.
结论:
- 通过特定的反,BO调整的V4细胞有助于图形背景调制.
- 这项研究阐明了人形背景感知的皮质机制.
- 在FBM和边境所有权调整之间建立了直接联系.
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