5.5. Conclusion 5 83 Figure S4: 6-fold cross-validation results of fitting the simulator to data from several of clinical studies that used cortical surface (ECoG) electrodes (Dobelle & Mladejovsky, 1974; Girvin et al., 1979; Niketeghad et al., 2020). The predicted current threshold (panel a) and total charge threshold (panel b) are displayed as a function of the effective stimulation duration (seeSections 5.2.3and5.2.4). The model fit (dashed lines) is overlaid on several sources of experimental data (solid points) fromNiketeghad et al. (2020) (R2 =0.873), Dobelle and Mladejovsky (1974) (R2 =0.616), andGirvin et al. (1979) (R2 =0.919). In the respective publications, experimental data were read out from graphs (Girvin et al., 1979; Niketeghad et al., 2020) and tables (Dobelle & Mladejovsky, 1974).
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