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Figure 1 | Dynamic Medicine

Figure 1

From: Regulation of oxygen transport during brain activation: stimulus-induced hemodynamic responses in human and animal cortices

Figure 1

Stimulus-induced hemodynamic responses in human visual cortex. (A) Measurement with NIOI. A flash photo was used for stimulation. Values are mean ± SD (n = 4 subjects). ■, Δ[oxy-Hb] (arbitrary unit); ▲, Δ[total-Hb]; X , Δ[deoxy-Hb] (B) Simultaneous measurement with fMRI and NIOI. The data show subject A (left), B (right), respectively. A black and white annular checkerboard was used as a stimulus. , BOLD signal (%); ■, Δ[oxy-Hb] (arbitrary unit); ▲, Δ[total-Hb]; X , Δ[deoxy-Hb]

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