Fig. 2
Task and Connectivity Analysis for Contrasting Emotions. (A) Experimental paradigm for the self-paced emotion imagination task. Each session consisted of a pre-baseline period, followed by a guided relaxation phase. This was followed by 15 emotion imagination trials alternating between positive and negative emotions, with a post-baseline period at the end. (B) Normalized coherence connectivity in the alpha band for a happy emotional state in 32 brain regions, Coherence ranged from 0, indicating no coherence, to 1, indicating full coherence. (C) Statistical comparison of alpha band coherence between happiness and pre-baseline at various brain regions, with significant changes indicated by 1 and non-significant changes indicated by 0. (D) Connectivity map between brain regions, highlighting significant differences in coherence during the happy state compared to the pre-baseline. (E) Normalized coherence connectivity in the alpha band for a sad emotional state in 32 brain regions, Coherence ranged from 0, indicating no coherence, to 1, indicating full coherence. (F) Statistical comparison of alpha band coherence for happiness versus pre-baseline at various brain regions, with significant changes indicated by 1 and non-significant changes indicated by 0. (G) Connectivity map between brain regions, highlighting significant differences in happy state coherence compared to pre-baseline, (H) Comparative statistical analysis of alpha-band coherence between happy and sad emotional states at different sites, with significant changes indicated by 1 and non-significant changes indicated by 0.
