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| Content Provider | Springer Nature Link |
|---|---|
| Author | Schoenberg, Poppy L. A. Speckens, Anne E. M. |
| Copyright Year | 2014 |
| Abstract | To illuminate candidate neural working mechanisms of Mindfulness-Based Cognitive Therapy (MBCT) in the treatment of recurrent depressive disorder, parallel to the potential interplays between modulations in electro-cortical dynamics and depressive symptom severity and self-compassionate experience. Linear and nonlinear α and γ EEG oscillatory dynamics were examined concomitant to an affective Go/NoGo paradigm, pre-to-post MBCT or natural wait-list, in 51 recurrent depressive patients. Specific EEG variables investigated were; (1) induced event-related (de-) synchronisation (ERD/ERS), (2) evoked power, and (3) inter-/intra-hemispheric coherence. Secondary clinical measures included depressive severity and experiences of self-compassion. MBCT significantly downregulated α and γ power, reflecting increased cortical excitability. Enhanced α-desynchronisation/ERD was observed for negative material opposed to attenuated α-ERD towards positively valenced stimuli, suggesting activation of neural networks usually hypoactive in depression, related to positive emotion regulation. MBCT-related increase in left-intra-hemispheric α-coherence of the fronto-parietal circuit aligned with these synchronisation dynamics. Ameliorated depressive severity and increased self-compassionate experience pre-to-post MBCT correlated with α-ERD change. The multi-dimensional neural mechanisms of MBCT pertain to task-specific linear and non-linear neural synchronisation and connectivity network dynamics. We propose MBCT-related modulations in differing cortical oscillatory bands have discrete excitatory (enacting positive emotionality) and inhibitory (disengaging from negative material) effects, where mediation in the α and γ bands relates to the former. |
| Starting Page | 13 |
| Ending Page | 29 |
| Page Count | 17 |
| File Format | |
| ISSN | 18714080 |
| Journal | Cognitive Neurodynamics |
| Volume Number | 9 |
| Issue Number | 1 |
| e-ISSN | 18714099 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2014-08-29 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Major Depressive Disorder (MDD) Mindfulness-Based Cognitive Therapy (MBCT) ERD/ERS Oscillatory EEG α-Band coherence γ-Band EEG power Biomedicine general Neurosciences Computer Science Artificial Intelligence (incl. Robotics) Biochemistry Cognitive Psychology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cognitive Neuroscience |
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