Grand average of the ERP data at the F5, Fz, F6, C5, Cz, C6, PO7, POz, PO8 sites for the C−S−, C−S+, C+S− and C+S+ conditions in the shape task.

Grand average of the ERP data at the F5, Fz, F6, C5, Cz, C6, PO7, POz, PO8 sites for the C−S−, C−S+, C+S− and C+S+ conditions in the shape task.