Figure 1 (IMAGE)

Tohoku University

Figure 1

Caption

Brain waves predict local brain blood volume fluctuations during NREM sleep. Through-skull fluorescence imaging visualizes cerebral blood vessels as dark "shadows," allowing local brain blood volume dynamics to be estimated (left). During NREM sleep, theta-band brain activity closely matched local brain blood volume changes occurring about 4 seconds later (center). Vascular responses appear to be dynamically adjusted to neuronal activity, supporting on-demand energy supply (right).

Credit

Yusuke Takahashi, Yoko Ikoma, Ko Matsui

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CC BY

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