Apparatus and physiological recording is similar to those described in previous studies conducted in our laboratory15 (link),81 (link). Physiological measures were recorded in a standardized fashion using a computer running eego™ software and an eego amplifier (ANT Neuro, Enschede, Netherlands). The electroencephalogram (EEG) was recorded using an elastic cap with 32 tin electrodes arranged according to the 10–20 System (Fp1, Fpz, Fp2, F7, F3, Fz, F4, F8, FC5, FC1, FC2, FC6, T7, C3, Cz, C4, T8, CP5, CP1, CP2, CP6, P7, P3, Pz, P4, P8, POz, O1, Oz, O2, and M1 and M2 [mastoids]), referenced online to CPz. Vertical and horizontal electrooculograms (EOGs) were recorded using a bipolar montage. Electrodes were placed at the supra- and suborbit of the right eye and the external canthi of the eyes. Electrode impedance was kept below 10 kΩ. The EEG and EOG signals were amplified, bandpass filtered (0.3–40 Hz), and digitized at 1000 Hz.
The electrocardiogram (ECG) was recorded using Ag/AgCl surface electrodes that were positioned on the participant's chest in a modified lead II configuration. The ECG signal was amplified, band-pass filtered (0.3–100 Hz), and stored on a Core 2 Quad computer. The ECG was sampled at 1000 Hz and the electrode impedance was kept below 5 kΩ.
The electrocardiogram (ECG) was recorded using Ag/AgCl surface electrodes that were positioned on the participant's chest in a modified lead II configuration. The ECG signal was amplified, band-pass filtered (0.3–100 Hz), and stored on a Core 2 Quad computer. The ECG was sampled at 1000 Hz and the electrode impedance was kept below 5 kΩ.
Free full text: Click here
