A Measure of Phase Locking of Cortico-cortical Brain Rhythms in Meditation EEG
Study at a glance
AI-extracted from the abstract| Characteristics | Observational study |
|---|---|
| Sample size | 23 |
| Population | Meditators |
| Intervention | meditation |
| Topics | Meditation |
| Key findings | Improved Phase Locking Value (IPLV) outperforms standard Phase Locking Value (PLV) in detecting neural synchrony from EEG signals during meditation. |
Abstract
The neural dynamics and its interpretation is a bit challenging task in the measure of synchronization. In this paper, in order to infer the neural mechanism in a different cognitive activity like meditation was observed through EEG signal and was investigated using Phase Synchrony (PS) estimation method. EEG signals are highly oscillating in nature. Its interpretation, on generalized phase synchrony, has studied to extract neural information transfer and neuronal dynamics of a complex system of the brain, which results from time-varying interactions of several subsystems. In this work, phase synchrony is used to study the simultaneous occurrences of peaks and valleys within EEG activities during meditation to obtain the transient spectral perturbation between different cortical areas. The result of both Phase Locking Value (PLV) and Improved Phase Locking Value (IPLV) has been shown and analyzed in meditation EEG signals. IPLV outperforms the results of PLV in EEG signal obtained from 23 meditators during meditation. Combining, we found that neural synchrony modulated the EEG signals independently. This finding has strong implication for interpretation of functional connectivity of EEG signal during meditation.
Comparable studies
Other observational and cohort studies on meditation, most cited first.
| Study | Year | Design | Participants |
|---|---|---|---|
| Using Self-Report Assessment Methods to Explore Facets of Mindfulness Undergraduate students | 2006 | Observational cohort | |
| Effectiveness of a meditation-based stress reduction program in the treatment of anxiety disorders Patients with generalized anxiety disorder or panic disorder with or without agoraphobia | 1992 | Observational cohort | n = 22 |
| Meditation experience is associated with increased cortical thickness Participants with extensive Insight meditation experience and matched controls | 2005 | Observational cohort | n = 20 |
| Meditation experience is associated with differences in default mode network activity and connectivity Experienced meditators and matched meditation-naive controls | 2011 | Observational cohort | |
| Long-term meditators self-induce high-amplitude gamma synchrony during mental practice Long-term Buddhist practitioners and controls | 2004 | Observational cohort |