Fig. 2.

Custom lycra EEG cap fitted with 10 tin electrodes. A. Schematic representation of electrode positions on the scalp. Four anterior electrodes were placed approximately over the frontal/motor cortex and four posterior electrodes were placed approximately over the parietal cortex. Anterior left electrodes: A1 and A3; Anterior right electrodes: A2 and A4; Posterior left electrodes: P1 and P3; Posterior right electrodes: P2 and P4; Reference electrode: R; Ground electrode: G. B. Close-up view of the EEG cap fitted on a 3-month-old macaque.