Table 1. Group by State by Valence interaction.
ROIs, Group by State by Valence interaction | L/R | Vol mm3 | Talairach coord. x y z | Gr. by St. by val. Inter. F-value | Neu (Med. vs Rest), t-value | (Pos+Neg)/2-Neu, t-value | Main effect verbal report, F-value | Interaction verbal report by Group, F-value |
Ant. Insula/Inf. Frontal gyrus | R | 3822 | 38 20 12/39 24 11 | 4.6 | X (p>0.4) | 2.3 (E>N) | 6.6 (G>P) | X |
Insula/post-/precentral gyrus | L | 5005 | −40 −1 17/−60 −6 18 | 4.3 | X (p>0.4) | 2.2 (E>N) | 5.3 (G>P) | X |
Sup.temporal gyrus/Inf. Parietal lobule (SII)/ post-central gyrus/ Insula | R | 4802 | 60 −29 14/52 −26 27/54 −22 32/49 −30 19 | 4.6 | 2.3 (Med.>Rest) | 2.2 (E>N) | X | X |
Precuneus/Sup. Parietal Lobule | L | 4102 | −20 −54 39/−19 −62 53 | 4.1 | X (p>0.4) | 2.2 (E>N) | 6.2 (G>P) | X |
Clusters extracted from the ROIs showing Group by State by Valence interaction (p<0. 05 corrected, repeated ANOVA). T-test comparing responses during meditation minus resting states for experts (E) vs. novices (N) during neutral sounds (Neu.) and during either positive and negative sounds minus neutral sounds ((Pos+Neg)/2-Neu) were run within in each of these ROIs (p<0.05). A 2*2 repeated ANOVA with verbal report (poor (P) vs. good (G)) and groups (experts vs. novices) was run in these ROIs on the response to positive and negative sounds during meditation blocks (12 experts and 10 novices). X indicates non-significant (p>0.05).