Skip to main content
. Author manuscript; available in PMC: 2017 Nov 15.
Published in final edited form as: Neuroimage. 2016 Jun 2;142:337–350. doi: 10.1016/j.neuroimage.2016.05.059

Figure 7.

Figure 7

Pairwise scatterplots between grand mean PCA factor scores derived from across-subjects CSD waveforms (134 ≤ n ≤ 146) and grand mean AM ratings scores (n = 147) for each of the 32 stimuli (16 negative-neutral pairs). Factor scores were pooled across 6 (N2 sink) or 12 (P3 source, CP source) parietooccipital sites included in the corresponding repeated measures ANOVAs (see sites marked in Fig. 5). Separate correlations are shown for valence (left) and arousal (right) for the overall scores, with additional regression lines for negative and neutral stimuli, and their respective emotional content net effects (negative-minus-neutral for each stimulus pair). All associations reveal that more positive CSD amplitudes were linked to more unpleasant and more arousing SAM ratings (see Fig. 1).