Fig. 2.

Location of the TMS target areas based on fMRI coordinates. The TMS target areas in the (A) left and (B) right IPS on the sagittal, coronal and axial view of the brain of a representative participant (anti-clock wise from top right). Target regions were identified by a previous fMRI study run with the identical experimental design on different subjects (Cappelletti et al., under review) and consisted of two regions on the left and right IPS (bottom right of A and B). These areas corresponded to the brain regions commonly activated by numbers and object names and identified by the main effect of conceptual tasks (over quantity and non-quantity categorical for numbers and object names) relative to fixation. Precise location of TMS target regions was obtained using a frameless stereotactic system (Brainsight software, Rogue Research, Montreal, Canada).