Figure 2.

Positive associations between perfusion and the log transformation of the number of total blast exposures. The significant positive associations between the number of total blast exposures and perfusion in regions such as the middle/superior temporal gyri, superior/middle frontal gyri, anterior cingulate cortex, insulae, and occipital cortex remained significant when the number of total blast exposures was log transformed (base 10) to account for the potential skew of the data. The 95% confidence intervals are shaded in gray. Other brain regions showed similar positive associations as those represented in the scatter plots and are not shown here. L: left; R: right.