FIGURE 3.

Two simultaneously recorded SDWs in the medial white matter in the absence of somatic activity compared across each wire of a tetrode (top row) and its corresponding firing rate map (second row) and autocorrelogram (third row). The overlay of 60 spikes as well as the average waveform for each SDW is displayed for each wire (top row). The firing rate maps for the SDWs display a complimentary spatial firing pattern where the SDW on the left fires more when the SDW on the right fires at a low rate (second row). The autocorrelograms for each SDW (third row) suggest that they are not theta modulated.