Touch and pain shape what brain imaging sees · Adiya Rakymzhan and Laura D. Lewis
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Sensory inputs influence different blood vessel networks, affecting the precision of brain scans Adiya Rakymzhan1 and Laura D. Lewis1,2,3,4 M uch of what is known about the spatial organization of cognitive and sensory function in the human brain comes not from recording neurons directly but from imaging signals from blood vessels. For example, func- tional magnetic resonance imaging (fMRI) infers neu- ral activity in the brain from local changes in blood oxygenation. Neurons send signals to nearby vessels to dilate, delivering oxygen and glucose to fuel neuronal activity. This neurovascular coupling is often treated as a faithful, modality-independent translator of neural signals into an imaging readout. On page 782 of this issue, Malescot et al. …
摘自《科学》(Science)第393卷 第6813期 · 2026年8月20日,Adiya Rakymzhan and Laura D. Lewis。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。