Figure 2

(a) Typical ERD time-frequency pattern for the frequency range between 8–12 Hz in the three TMS conditions (AG, IPS and Sham) from a representative subject in the period (i.e. 1 s) before the target onset. Notably, for each spectrogram the asterisk represents the ERD peak latency; (b) Individual alpha ERD peak latencies for each TMS conditions (AG, IPS and Sham). In the majority of subjects the alpha ERD peak latency was shorter after magnetic stimulation of AG compared to both Sham and IPS conditions.