Peter Gamma (Physiologist & Director) Meditation Research Institute Switzerland (MRIS)

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And there is no need to test all kind of Personal EEG Devices Cody Rall MD with Techforpsych tested over the last 10 years

Cody Rall tested EEG Devices for practicing meditation over the last 10 years:

But one practice is enough as Osho said and that is for instance widnessing the breath meditation:

And one device is enough to measure respiration rate:

But who pays 10 000 USD for the Adinstruments recorder with Labchart software to measure his respiration rate during practicing meditation in his home lab?