Fig. 4

Performance in two Mitii modules. Mathematics (a) and Memory (b) during the intervention periods when children received DDU-supplement (closed circles) or placebo (open circles). The mathematic task is given by an average increase in percentage of correct responses each possible training day (note: nobody from the placebo group trained day 18 therefore no results are provided). The memory task is given by an average decrease in percentage of errors during each possible training day. The error bars indicate SEM for each group