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. 2010 Sep 16;1(3):923–942. doi: 10.1364/BOE.1.000923

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©2010 Optical Society of America

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which permits download and redistribution, provided that the original work is properly cited. This license restricts the article from being modified or used commercially.

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Fig. 7 — Experimental results of the arterial occlusion protocol for subjects 6-9 (panels (a)-(d), respectively). In each panel, the top section shows the optical signals relative to tissue ∆I_occl(t)/I₀, and the bottom section shows the maximum stimulated optical response to individual stimulations, δI_stim(t_max)/I(t₀), smoothed with a 20-point average. The four phases of each trial consists of: (phase 1) baseline, (phase 2) nerve stimulation with no arterial occlusion, (phase 3) nerve stimulation during arterial occlusion, and (phase 4) nerve stimulation after release of arterial occlusion. The shaded area indicates the period of arterial occlusion (phase 3).