CHX wash-in suppressed EPSPs evoked at 30 Hz as recorded in the PC (after/before = 49%, p < 0.001, Student's t test) but not the BC (after/before = 95%, p = 0.09, Student's t test) or the MC (after/before = 96%, p = 0.78, Student's t test). Traces are averaged over periods indicated by colored lines.