Increased theta and alpha EEG activity during nondirective meditation.

@article{Lagopoulos2009IncreasedTA,
  title={Increased theta and alpha EEG activity during nondirective meditation.},
  author={Jim Lagopoulos and Jian Xu and Inge-Andre Rasmussen and Alexandra Vik and Gin S. Malhi and Carl F Eliassen and Ingrid Arntsen and Jardar G Saether and Stig Hollup and Are Holen and Svend Davanger and {\O}yvind Mortveit Ellingsen},
  journal={Journal of alternative and complementary medicine},
  year={2009},
  volume={15 11},
  pages={
          1187-92
        }
}
OBJECTIVES In recent years, there has been significant uptake of meditation and related relaxation techniques, as a means of alleviating stress and maintaining good health. Despite its popularity, little is known about the neural mechanisms by which meditation works, and there is a need for more rigorous investigations of the underlying neurobiology. Several electroencephalogram (EEG) studies have reported changes in spectral band frequencies during meditation inspired by techniques that focus… 
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