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Updated: May 7, 2026

Coherence between Brain Cortical Function and Neurocognitive Performance during Changed Gravity Conditions
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通过向下倾斜的模拟微重力对内顺应,大脑振荡和心血管自主调制的影响

Rafaella Mendes Zambetta1,2, Étore De Favari Signini3, Aparecida Maria Catai3

  • 1Physical Therapy Department, Federal University of São Carlos, UFSCar, Rodovia Washington Luís, São Carlos, São Paulo, 13565-905, Brazil. rafa.m.zambetta@gmail.com.

Scientific reports
|November 27, 2025
PubMed
概括

太空飞行模型中的头向下倾斜 (HDT) 降低了内合规性 (ICC) 并改变了自主功能. 这项研究发现,急性HDT会损害健康个体的大脑血流调节和大脑活动.

关键词:
自主神经系统的自主神经系统.大脑的自我调节.皮层的电活动.流体转移是流体的转移.内压力 内压力微重力模型的微重力模型.

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Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
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Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...