在注意力暂时调制期间,在传感模式之间共享皮层下刺激系统
Aya Khalaf1, Erick Lopez1, Jian Li2,3
1Department of Neurology, Yale University School of Medicine, New Haven, CT, USA.
bioRxiv : the preprint server for biology
|September 30, 2024
概括
皮下刺激系统对于注意力和意识至关重要. 这项研究发现,中脑和丘脑的共享皮层下网络参与了视觉,听觉,触觉和味觉感知方面的注意力.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
背景情况:
- 皮下刺激系统调节注意力和意识.
- 它们在不同感官模式中的作用尚未完全理解.
研究的目的:
- 在注意力变化期间,研究跨感官模式的共享皮质下兴奋系统.
- 利用来自大型参与者队列的fMRI数据.
主要方法:
- 对大规模,公开可用的fMRI数据集的分析.
- 检查视觉,听觉,触觉和味觉感知任务.
- 雇佣的块和事件相关的fMRI设计.
主要成果:
- 确定了一个共享的皮质下激发电路,在所有感官模式中都活跃.
- 观察到中脑网状形成和中丘脑的早期过渡性活动增加.
- 在小马,下丘脑,基底前脑和基底质中发现了不那么一致的活动增加.
结论:
- 皮质下兴奋系统在注意力方面发挥着一般模式的作用.
- 了解这些网络是意识研究的关键.
- 这些发现可能会为治疗注意力和意识障碍的神经调节策略提供信息.
更多相关视频
06:46Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
7.0K
09:48Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention
Published on: September 11, 2017
9.9K
相关概念视频
Sympathetic Activation
5.2K
The sympathetic division can influence tissues and organs by releasing norepinephrine at peripheral synapses and distributing epinephrine and norepinephrine through the bloodstream. In times of crisis or stress, sympathetic activation occurs, which is regulated by sympathetic centers in the hypothalamus. As a result, sympathetic activation prepares the body for physical exertion, rapid ATP production, and heightened alertness, allowing individuals to respond effectively to challenging or...
5.2K
Subliminal Perception
245
Subliminal perception refers to the processing of sensory information that occurs below the level of conscious awareness. Researchers study subliminal perception by presenting a stimulus, such as a word or image, very quickly, typically around 50 milliseconds. This rapid presentation is often followed by another stimulus, such as a pattern of dots or lines, which blocks further mental processing of the initial stimulus. As a result, if participants cannot identify the initial stimulus better...
245
