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. Author manuscript; available in PMC: 2015 Jan 29.
Published in final edited form as: Exp Eye Res. 2012 May;98:88–96. doi: 10.1016/j.exer.2012.03.017

Fig. 4.

Fig. 4

3-D statistical parametric map (SPM) projection of light stimulation and transcorneal electrical stimulation (TcES) activation. (Top row) Increase in cortical PET FDG activity compared to baseline (p < 0.05) during light stimulation in normal controls; (Second row) TcES in normal controls; (Third row) light stimulation in retinal degenerative subjects; and (Bottom row) TcES in retinal degenerative subjects. SPM maps are overlaid on top of rendered 3-D MRI brain surfaces. Selected Brodmann areas that exhibit increased activity during stimulation conditions are labeled as yellow numeric values. Scale bar = t-value. L: left hemisphere; NC: normal controls; RD: retinal degenerative subjective.