Activity estimates (t-values) for each condition for 43 seconds of the delay period were entered into a two-way parametric repeated measures ANOVA (LOAD, RATE). A positive main effect of memory LOAD can be visualized across many regions implicated in verbal working memory including MFG, IFG, PM, SPL and area Spt. In contrast, a positive main effect of rehearsal RATE is mainly restricted to IFG, PM, area Spt and occipital lobe regions. No region demonstrated a LOAD×RATE interaction. Data from left hemisphere; data shown are z-scores thresholded at FDR q<0.05.