Figure 2.

Representative electrophysiological data recorded from one tetrode during a single spatial eyeblink conditioning session. A, The mean and standard error of the mean of spike wave shapes of nine putative single cells. A 1 ms sample of the average waveform on each channel of the tetrode is shown. All cells are plotted on the same scale. B, Two-dimensional cluster diagrams with each data point representing energy (square root of the sum of the squared spike amplitudes) from each putative cell. Each cluster is assigned a unique color, matching that of the waveforms shown in A.