Figure 6.
MRS measurements of main outcome measure by task block. (a) Estimation of the Cho/Cre ratio was z-scored within each of the 31 subjects and averaged across the group for each block type of the configural working memory task. The z-Cho/Cre ratio showed a significant increase while subjects performed the remember blocks compared to the rest blocks. (b) Non-normalized Cho/Cre ratio results are presented to show the scale of effect size. Error bars represent standard error from the mean. REST: rest blocks, MEM: memorization blocks, REM: remember blocks, TEST: test blocks.