相关实验视频
Updated: Jun 12, 2025

06:12
Long-term Sensory Conflict in Freely Behaving Mice
Published on: February 20, 2019
6.7K
在多次暴露于视觉 - 垂体冲突后,皮质网络的快速重新配置
Anke Hua1,2, Guozheng Wang3,4, Jingyuan Bai1
1Department of Sports Science, Zhejiang University, Hangzhou, 310058, China.
Scientific reports
|September 20, 2024
概括
反复暴露于视觉前立腺冲突,无论是否一致或不一致,都会改善姿势稳定性. 大脑通过改变它如何整合感官信息来适应,在冲突场景中减轻不可靠的视觉输入.
科学领域:
- 神经科学是一个神经科学.
- 人体生理学 人体生理学
- 感官整合 感官整合
背景情况:
- 众所周知,视觉前体冲突会导致运动恶心和损害平衡.
- 习惯化策略旨在通过修改大脑如何权衡感官输入来减少这些症状.
- 在视觉前庭冲突暴露后,多感官重权的精确神经机制仍然不清楚.
研究的目的:
- 为了研究人类大脑如何重量多感官信息在多次暴露于视觉前置体对应和不对应的刺激后.
- 阐明神经网络动态,以改变感官环境的姿势稳定性变化为基础.
主要方法:
- 参与者接触到同步旋转平台和虚拟现实视觉场景,创建一致和不一致的视觉前置状况.
- 收集了脑电图 (EEG) 和压力中心 (COP) 数据,以评估大脑活动和姿势控制.
- 在theta频段的源空间EEG数据被用来构建在感兴趣区域 (ROI) 内的有效的大脑连接网络.
主要成果:
- 一致和不一致的视觉前置暴露减少了COP路径长度和增加了COP复杂性,表明改善了姿势稳定性.
- 暴露于不一致的刺激导致视觉皮层的流入量减少,这表明不可靠的视觉信息的下加权.
- 暴露于同等刺激会增加后额叶皮层的流入量,以及视觉皮层和主要体感皮层 (S1) 的流出量,表明增强了多感官集成.
结论:
- 对一致和不一致的视觉前庭状况的重复暴露增强了姿势稳定性.
- 不同的多感官重权模式,反映在动态大脑网络变化中,是姿势控制观察到的改善的基础.
- 大脑根据传入信息的可靠性灵活调整感官处理策略,以保持平衡.
相关概念视频
Motor and Sensory Areas of the Cortex
3.3K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor...
3.3K
Association Areas of the Cortex
5.1K
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,...
5.1K
Vision
53.0K
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.
53.0K
Neuroplasticity
310
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
310
Color Vision
539
Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.
539
Somatosensory, Motor, and Association Cortex
432
The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at...
432

