Fig. 3

Sensitivity and specificity analysis of the power at the expected frequency of tapping. ROC curves were computed for both synchronous and alternating conditions at every frequency of finger tapping (1, 3 and 5 Hz). The best results were found for alternated tapping at 3 Hz (**), which ROC curve showed a sensitivity of 84% and a specificity of 74%, and for the synchronous tapping at 1 Hz (*) showing a sensitivity of 74% and a specificity of 47% to discriminate patients with NF1 from healthy controls