Figure 2: Top panel. Pearson product moment correlational analyses between PQ1 and writing-time (min) over all 10 days of testing (Days 1, 3, 5, 7, 9, 11, 13, 15, 17 and 19) summated over all 30 patients, Pearson r=0.793 (df=30), p<0.000001. Bottom panel. Pearson product moment correlational analyses between writing-time (min) and dΔ over 10 days of testing (Days 1, 3, 5, 7, 9, 11, 13, 15, 17 and 19) summated over all 30 patients, Pearson r = 0.868 (df = 30), p < 0.0000001, two-tailed tests.