Affordable Access

Publisher Website

Non-linear dynamic complexity of the human EEG during meditation

Authors
Journal
Neuroscience Letters
0304-3940
Publisher
Elsevier
Publication Date
Volume
330
Issue
2
Identifiers
DOI: 10.1016/s0304-3940(02)00745-0
Keywords
  • Eeg
  • Dimensional Complexity
  • Non-Linear Dynamics
  • Eeg Band Power
  • Meditation

Abstract

Abstract We used non-linear analysis to investigate the dynamical properties underlying the EEG in the model of Sahaja Yoga meditation. Non-linear dimensional complexity (DCx) estimates, indicating complexity of neuronal computations, were analyzed in 20 experienced meditators during rest and meditation using 62-channel EEG. When compared to rest, the meditation was accompanied by a focused decrease of DCx estimates over midline frontal and central regions. By contrast, additionally computed linear measures exhibited the opposite direction of changes: power in the theta-1 (4–6 Hz), theta-2 (6–8 Hz) and alpha-1 (8–10 Hz) frequency bands was increased over these regions. The DCx estimates negatively correlated with theta-2 and alpha-1 and positively with beta-3 (22–30 Hz) band power. It is suggested that meditative experience, characterized by less complex dynamics of the EEG, involves ‘switching off’ irrelevant networks for the maintenance of focused internalized attention and inhibition of inappropriate information. Overall, the results point to the idea that dynamically changing inner experience during meditation is better indexed by a combination of non-linear and linear EEG variables.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Non-linear dynamic complexity of the human EEG dur...

on Neuroscience Letters Sep 20, 2002

Non-linear dynamic complexity of the human EEG dur...

on International Journal of Psych... January 1998

Non-linear dynamic complexity of the human EEG dur...

on International Journal of Psych... Jan 01, 1998

Complexity of visual stimuli and non-linear EEG dy...

on Cognitive Brain Research Jan 01, 2003
More articles like this..