recorded EEG data with a sampling rate of 1024 Hz. Stimulus delivery was controlled by a script written in E-Prime software 1.1 (Psychology Software Tools, Pittsburgh, PA) to mimic the original program and pass event triggers to the recording system. ActiveTwo amplifiers are DC coupled, and signals were low-pass filtered using a digital 5th-order Bessel antialiasing sinc filter with a cutoff frequency (3-dB attenuation) of 205 Hz. ActiveTwo signals are monopolar.
