Figure 4
From: Local field potentials are induced by visually evoked spiking activity in macaque cortical area MT
Correlation maps for spiking activity/LFP from same/different recording sites and linear model prediction of LFPs. (A,C) Similar correlation maps as in Fig. 3A,B where spiking activity and LFP come from the same recording site. (B,D) Correlation maps based on spiking activity and LFP recorded from different MT sites simultaneously. Top and bottom panels correspond to monkeys H and T, respectively. (E,F) Linear model predictions of LFPs based on spiking activity. Performance of estimating LFPs based on spiking activity for different pairs of intervals relative to stimulus onset is shown. Colors code the correlation of a linear estimator’s output with original LFPs at each spike-LFP time pair, and each panel reflects the results for one monkey. The diagonal white line in each panel indicates simultaneous spike-LFP pairs. Black borders specify time pairs with statistically significant estimation performances across recording sites, quantified as the correlation between the estimated and original LFP amplitudes (p < 0.05, t-test, corrected for multiple comparisons).
