/However, at the slower rates the modulation was not limited to the time points associated with the passive N1, and entirely overlapped with the time points for which the passive P1 significantly exceeded baseline. For example, at 3 Hz the initial significant positive attentional modulation extended from 33 to 176 ms, while P1 significantly exceeded baseline between 37 and 90 ms. Similarly, at 2 Hz the initial significant positive modulation extended from 20 to 182 ms, while P1 significantly exceeded baseline from 51 to 76 ms. Finally, an unexpected finding was that no significant attentional modulation was found at 5 Hz, despite the clear tone-related deflections in the passive condition.