Table S2.
The relationship of theta–gamma P–A correlation and burst–LFP synchronization across all types of channel combination
| Channel of burst-LFP synchronization pair | Frequency band applied to LFP signal in burst-LFP synchronization | Theta-phase–providing LFP channels | Gamma-amplitude–providing LFP channels | ||
| All | Those with significant theta–gamma correlation | All | Those with significant theta–gamma correlation | ||
| “LFP channel” of burst–LFP synchronization pair; LFP recorded at the same channel as used for the cross-frequency analysis | Theta (5–10 Hz) burst–LFP synchronization | P = 0.261 | P = 0.713 | P = 0.027* | P = 0.702 |
| r = 0.036 | r = 0.038 | r = 0.072* | r = 0.040 | ||
| Beta (15–25 Hz) burst–LFP synchronization | P = 0.155 | P = 0.016† | P = 0.086 | P = 0.032† | |
| r = −0.046 | r = −0.246† | r = 0.056 | r = −0.219† | ||
| Gamma (55–75 Hz) burst–LFP synchronization | P = 0.069 | P = 0.701 | P = 0.138 | P = 0.163 | |
| r = 0.059 | r = −0.040 | r = 0.048 | r = 0.143‡ | ||
| “Burst channel” of burst–LFP synchronization pair; burst firing of neurons at the same channel as used for the cross-frequency analysis | Theta (5–10 Hz) burst–LFP synchronization | P = 0.728 | P = 0.255 | P = 0.657 | P = 0.266 |
| r = 0.010 | r = 0.114‡ | r = 0.013 | r = 0.111‡ | ||
| Beta (15–25 Hz) burst–LFP synchronization | P = 0.482 | P = 0.406 | P = 0.581 | P = 0.234 | |
| r = 0.021 | r = 0.083 | r = −0.017 | r = 0.119‡ | ||
| Gamma (55–75 Hz) burst–LFP synchronization | P = 0.070 | P = 0.044* | P = 0.750 | P = 0.476 | |
| r = 0.055 | r = 0.200* | r = 0.010 | r = 0.071 | ||
The table shows the Spearman rank correlations and their respective significance levels. Columns are split into the theta-phase–providing channels and the gamma-amplitude–providing channels. Different columns show either all channels, or channels from LFP pairs that showed significantly increased P–A correlation in the postcue period. Rows show the results separately for channels at which either the LFP (upper three rows) or the burst firing of neurons (lower three rows) were part of a burst–LFP pairs. For recording channels with more than one single cell, the average burst–LFP synchronization across cells for that channel was used for calculating the correlation. Significant (P < 0.05) correlations are indicated in bold.
Positive correlations at P < 0.05.
Negative correlations at P < 0.05.
Correlations >0.1.