coherence was also present in the shuffled control data, the observed coherence was increased at a range of frequencies, prominently so in the gamma range. To assess the contribution of individual FSIs, we plotted each cell's coherence z- score against the shuffled coherence distribution, ordered by z-score at 50 Hz (Figure 14B). This plot shows first, that the vast majority of neurons had significant coherence relationships with the LFP at some frequency; furthermore, it indicates that while there were some neurons with high 50 Hz coherence that were also coherent at 80 Hz, there was a clear number of neurons coherent at 50 Hz but not 80 Hz, and vice versa. At a conservative threshold of z > 5, 11/53 neurons cohered with gamma-50, 18/53 with gamma-80, and 5/53 with both. Over all FSIs, there was no significant cross-frequency correlation between the raw or z-scored coherence at 50 and 80 Hz (both 0 < r < 0.06, p > 0.68); however, with different cells having different overall coherence levels, subtracting the mean coherence from each cell resulted in a strong anticorrelation between gamma-50 and gamma-80 coherence (raw coherence: r = −0.47, p = 0.0004; z-scored coherence: r = −0.91, p
