接收场的前向和收重新映射来自前眼场的局部场势的局部场势
Min Jin1, Lin Yang1, Fangfang Jia1
1Key Laboratory of Cognitive Neuroscience and Learning, Division of Psychology, Beijing Normal University, Beijing, China.
Communications biology
|June 12, 2025
概括
局部场势揭示了前眼场的感受场重映射. 高马信号显示注意力驱动的转变,而α信号则表明在萨卡德任务期间来自遥远的大脑区域的贡献.
科学领域:
- 神经科学是一个神经科学.
- 系统神经科学 系统神经科学
- 认知神经科学 认知神经科学
背景情况:
- 接收场 (RF) 重新映射对于注意力和动过程中的感觉运动转换至关重要.
- 大多数研究使用尖峰速率,对来自局部场势 (LFP) 的射频来说知之甚少,这些射频反映了突触输入.
研究的目的:
- 在延迟的萨卡德任务中,在前眼场 (FEF) 中使用LFP来研究RF重映射.
- 要区分以注意力驱动的和由相关放电 (CD) 驱动的重绘机制.
主要方法:
- 使用LFPs在子FEF中进行测量RF重绘,重点关注高马和α频段.
- 分析了一个延迟的萨卡德任务的延迟和perisaccadic期间的RF转移.
主要成果:
- 在延迟期间,高马射频向固定点转移.
- 高马射频在周周周期期间表现出收和向前重新映射.
- 阿尔法射频只显示向前重新映射,没有显著的延迟周期转移.
结论:
- 高马的LFP重新映射与观察到的注意力驱动和CD驱动机制一致.
- 阿尔法LFP重新绘制表明不同的时间动态和来自本地和遥远来源的潜在贡献.
相关概念视频
Association Areas of the Cortex
5.2K
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,...
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,...
5.2K
Vision
53.1K
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.
53.1K
Anatomy of the Eyeball
6.7K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
6.7K
Parallel Processing
147
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
147


