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Fv relationships during retractions. (a and c) Superimposed Fv relationships from 18 lateral and 12 vertical retractions, respectively, from data filtered at 0.2 Hz. F is normalized to Fmax. (b and d) <Fv>x relationships for lateral (21 experiments) and vertical (22 experiments) retractions, respectively. Data were filtered up to a bandwidth of X Hz. <Fv>0.2 (green trace), <Fv>1 (pink trace), and <Fv>10 (black trace).
