Figure 4. A. Correlation with Mini Mental State Examination (MMSE) A. Scatterplot of MMSE and aβ oligomers for the entire sample pooled. The regression line for all samples shows an inverse correlation that is not statistically significant (Pearson correlation, r = -0.225, p = 0.175, n = 38, two-tailed) and is depicted with a solid red line. B. Scatterplot of MMSE and the aβ oligomer ratio for the entire sample pooled (solid red line) shows an inverse correlation that is statistically significant (Pearson correlation, r = -0.490, p < 0.005, n = 38, two-tailed).