Supplementary Figure 1: Experimental setup and electrophysiology of VPm neurons.

(a) Example voltage traces of evoked single-unit VPm activity from the beginning (top), ~2 hours (middle) and ~3.5 hours (bottom) of a recording. Inset: corresponding VPm spike waveforms; shaded area represents ±s.d. (n=300 spikes). (b) Measured spectrum of the WGN deflection provided by the custom modified galvomotor.