Table 2.
Clinical scale scores for MBCT versus WL groups and correlations between increment changes (T1–T2) in clinical and ERD/ERS evoked and induced measures
| Clinical variable | MBCT (σ) | WL (σ) | Correlations with ERD/ERS activity at Pz in MBCT group▲ [ANOVA between—group effects/interactions] | ||||
|---|---|---|---|---|---|---|---|
| Pre | Post | Comparison | Pre | Post | Comparison | ||
| IDS | 27.3 (9) | 19.3 (2) | p = .02* | 25.1 (12) | 25.3 (13) | p = .89 | ↓ α-ERD/NG-T/P/E: p = .003* ↓ α-ERD/NG-T/P/L: p = .001** ↓γ-ERD/NG-T/N/L: p = .03* ↑γ-power/Go-T/N/E: p = .004** ↓γ-power/Go-T/n/E: p = .04* ↓γ-power/Go-T/N/L: p = .008** ↑γ-power/NG-T/P/E: p = .04* ↓γ-power/NG-T/P/L: p = .05* [Time x Group: p = .02*] |
| SC Scale☼ | |||||||
| Global score | 83.7 (26) | 107.0 (27) | p < .0001** | 81.7 (29) | 84.0 (23) | p = .45 | ↓α-ERD/NG-T/N/E: p = .05* ↑α-ERD/NG-T/N/L: p = .04* ↓α-ERD/NG-T/P/L: p = .03* [Time: p = .001** Time x Group: p = .001**] |
| SC subscales | |||||||
| Self-Kindness | 13.3 (6) | 17.3 (6) | p = .001** | 13.9 (5) | 13.5 (5) | p = .65 | *No correlations were run for subscales |
| Self-Judgement | 19.3 (6) | 14.9 (5) | p = .001** | 18.1 (5) | 17.8 (5) | p = .61 | |
| Common Humanity | 14.5 (5) | 17.9 (5) | p = .006** | 13.6 (5) | 13.3 (5) | p = .72 | |
| Isolation | 18.8 (6) | 15.1 (5) | p = .005** | 18.5 (5) | 17.1 (6) | p = .07 | [Time: p = .001** Time x Group: p = .001** Subscale: p = .03*] |
| Mindfulness | 16.7 (5) | 19.5 (5) | p = .009** | 14.1 (5) | 15.2 (5) | p = .10 | |
| Over-identification | 18.5 (6) | 13.6 (6) | p = .003** | 18.9 (5) | 19.0 (5) | p = .94 | |
▲, no significant correlations between clinical changes and EEG dynamics were evident in the WL group. Nor any significant correlations at FCz
☼, Self-Compassion Scale (Neff 2003)