相关实验视频

Updated: Jul 27, 2026

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions

Published on: May 23, 2011

人工引力对脑神经认知能力的影响,在头向下倾斜的床时

Borbála Tölgyesi^1,2, Anna Altbäcker³, Irén Barkaszi¹

¹Institute of Cognitive Neuroscience and Psychology, HUN-REN Research Centre for Natural Sciences, Budapest, Hungary.

NPJ microgravity

|June 5, 2024

概括

人工重力 (AG) 在60天的头向下倾斜卧床 (HDTBR) 期间没有损害认知功能. 间歇性和持续性AG都没有对注意力和工作记忆任务产生负面影响.

科学领域:

太空飞行研究研究.
人类生理学人类生理学
认知神经科学是一种认知神经科学.

背景情况:

头向下倾斜的床靠 (HDTBR) 模拟了微重力效应.
人工引力 (AG) 是太空飞行诱导的生理脱条件的潜在对策.
认知功能对于长期任务期间的宇航员表现至关重要.

研究的目的:

评估间歇性和连续性人工重力 (AG) 对认知表现的影响.
在60天的头向下倾斜卧床支架 (HDTBR) 协议中评估认知功能.
调查AG对注意力和工作记忆的潜在急性和慢性影响.

主要方法:

随机对照试验有三个组:间歇性AG,连续AG和HDTBR控制.
以视觉和听觉方式 (简单和复杂) 管理的认知任务.
电生理学测量 (大脑潜力) 记录以评估注意力和工作记忆的神经相关性.

主要成果:

与基线相比,在HDTBR期间,反应时间更快,复杂任务的准确性更高.
在所有HDTBR组中,对认知任务的练习效果降低,而不是门诊对照.
大脑潜力的模式特异性变化:P3a在听觉模式下降,P3b在视觉模式下降.

结论:

在HDTBR期间,没有证据表明由于人工重力造成的急性或慢性认知障碍.
在模拟太空飞行条件下,人工重力似乎对认知功能安全.
在长时间的床上休息期间,认知表现可能会因任务的复杂性和模式而适应或受到影响.

更多相关视频

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance

Published on: March 21, 2013

Comprehensive Understanding of Inactivity-Induced Gait Alteration in Rodents

Comprehensive Understanding of Inactivity-Induced Gait Alteration in Rodents

Published on: July 6, 2022

相关概念视频

Anatomical Positions

Anatomical Positions

In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...

Major Somatic Sensory Pathways

Major Somatic Sensory Pathways

Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the posterior columns...

Neuroplasticity

Neuroplasticity

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.