Figure 2: Cue-evoked ECoG potentials and stimulus selectivity of theta power. | Nature Communications

Figure 2: Cue-evoked ECoG potentials and stimulus selectivity of theta power.

From: Associative-memory representations emerge as shared spatial patterns of theta activity spanning the primate temporal cortex

Figure 2

(a) Visual cue-evoked ECoG potentials. (top) Amplitudes of cue-evoked potential averaged across trials at each of the 128 channels in monkey M. Channel number assignments are shown in Supplementary Fig. 1. (bottom) Representative waveforms of cue-evoked potentials. (b) Channel-wise mappings of response selectivity of theta activity to the cue stimuli. F-values above significance level (n=2 monkeys, one-way ANOVA, P<0.05, Bonferroni corrected for the number of channels) are colour-coded. Approximate areal borderlines are superimposed on the maps. (c) Time-frequency analysis of representative cue-evoked response in TE. (top) ERSP evoked by cue stimulus presentation. (middle) Theta component of the cue-evoked potential corresponding to the top panel. A band-pass filter of 4–8 Hz was applied to the raw signal. (bottom) Time course of power of theta activation corresponding to the middle panel. Red line indicates±2s.d. of theta power during the baseline period. ERSP, event-related spectral perturbation.

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