Figure 5.

Connection strengths by fluency. Two (endogenous) connections were negatively correlated (gray line) with letter fluency in non-native speakers (dark gray data points): PT → PrC and PT → aSTG. The two available examples of native speakers (light gray data points) with letter fluency scores would appear to fit this pattern, and the remaining participants who did not have fluency scores (plotted over “NA” on the x-axis) were mostly native speakers and would appear to cluster (as expected) toward the more fluent end of the fluency distribution.