A magnetic resonance imaging (MRI) scanner, Philips 3-Tesla (MR Systems Ingenia CX), was used to perform the functional magnetic scans before and after light exposure (Fig. 3). Figure 3 Workflow diagram. (A) The experimental design consisted of a repeated measures design where all the ...
where y(t) is an n-dimensional time series of recorded brain activity, in this case via resting-state functional magnetic resonance imaging (fMRI) (rsfMRI) or iEEG (rsiEEG), x(t) is an m-dimensional time series of ‘internal’ brain states, f and h are generally nonlinear vector field...
Short-bore MRI: this machine is similar to the standard, but it’s about half the length. If you are having pictures taken of your head, then your feet will stick out one end of the tube; if your back is being imaged, then your head will stick out. You may find this option more...
另一方面,功能连接网络可以通过来自不同大脑区域的血氧水平依赖功能性MRI信号之间的时间相关性或相干性来计算;这些功能连接网络为大脑动力学提供了一个网络视角。研究表明人类网络的组织是为了优化效率,因为小世界拓扑结构允许同时进行全局和局部并行信...
This stunning discovery was also replicated in living humans using magnetic resonance imaging (MRI) [53]. The precise anatomical location of the meningeal lymphatic vessels relative to the meningeal layers is yet to be clarified [54], as well as the anatomical connection between such vessels and ...
and edema-to-tumor volume ratio derived by 3D modeling from patient MRI’s [32]. Furthermore, in an in vitro blood brain barrier (BBB) model, modulation of FMOD in brain metastatic melanoma cells altered endothelial barrier functions [32], which might translate to decreased microvascular perfusi...
[MRI] generates a signal that correlates with gold standard measurement of perfusion), whereas proof of principle refers to validation that the measurement distinguishes cases from controls or is associated with health outcomes (e.g., ASL-measured perfusion is different in cSVD patients compared with...
(MRI) technology with MRI-compatible interventional instrumentation and particularly improved temporal resolution has enabled MRI-guided neurointerventions that have proved particularly useful for improving reliability of osmotic BBB opening (OBBBO). Other imaging modalities such as intravital two photon ...
INT is commonly investigated in cellular4,24and systemic1,12,13,14,22,25,26granularity levels. On a systemic level, Hasson and colleagues1,12,26,27operationalize INT using functional connectivity during task state. They define temporal receptive windows as “the length of time before a response...
As a key oscillatory activity in the brain, thalamic spindle activities are long believed to support memory consolidation. However, their propagation characteristics and causal actions at systems level remain unclear. Using functional MRI (fMRI) and elec