Figure 1: (a) Typical placements of the stimulating and recording electrodes in the MGN and A1, respectively. Atlas images adapted from Paxinos and Watson [18]. (b) Typical fPSPs recorded in A1 following single-pulse MGN stimulation consisted of two distinct negative peaks occurring at approximately 7 and 15 ms after the stimulation artifact (initial sharp, positive spike). Blue (smaller amplitude) and red (larger amplitude) traces represent fPSPs recorded before and after LTP induction, respectively.