Does meditation lead to a stable mind? Synchronous stability and time-varying graphs in meditators
| Autor: | Hilton Ferreira Japyassú, Abrahão Fontes Baptista, Fernanda Q. Campbell, José Garcia Vivas Miranda, Joel Augusto Moura Porto, Thaise Graziele L. de O. Toutain, R.S. Rosário |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0303 health sciences
Control and Optimization Computer Networks and Communications Applied Mathematics media_common.quotation_subject Stability (learning theory) Management Science and Operations Research 03 medical and health sciences Computational Mathematics 0302 clinical medicine Lead (geology) Control theory Meditation Psychology 030217 neurology & neurosurgery 030304 developmental biology media_common |
| Zdroj: | Journal of Complex Networks. 8 |
| ISSN: | 2051-1329 2051-1310 |
| DOI: | 10.1093/comnet/cnaa049 |
| Popis: | The dynamical approach represents a new branch in the understanding of functional brain networks. Using simple indices to represent time connectivity and topological stability, we evaluated the hypothesis of increased brain stability during the meditative state in comparison to the relaxation state. We used a new way to consider the time evolution of synchronization patterns in electroencephalography (EEG) data. The time-varying graph approach and the motif synchronization method were combined to build a set of graphs representing time evolution for the synchronization of 29 EEG electrodes. We analysed these graphs during meditation and relaxation states in 17 experienced meditators. As result, we found significant increasing of time connectivity (t(15) $= -2.50$, p $= 0.023$) and topological stability (t(15) $= 1.23$, p $= 0.020$) in the meditation state when compared to the relaxation state. These findings suggest that dynamical properties of the synchronization network may revel aspects of brain activity in altered states of consciousness not possible to measure using a static approach. We concluded that the topological patterns evolution in the functional networks of experienced meditators are more stable in the meditative state than in the relaxation state. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|