Others improved only modestly, where presumably this was not a problem. This is shown in Figure 3. Before training, the ratio of right to left hand tapping skills ranged widely. These data are perhaps the most surprising, and the most direct evidence that neurological function is being altered with the training. Right-left ratio in tapping performance before and after EEG training.
Ratio varies widely before training.
The change in laterality is taken as evidence for the remediation of minor neurological deficits. Some months after the completion of EEG training, we did followup with the parents of the children in the study group. We assigned a -for every category where there was a residual problem. Then we added up all the pluses and minuses. The results are shown in Figure 4.