Gamma (High)
100.00 Hz
100 Hz is above the clinical gamma band of brain activity, as recorded by EEG (sensors on the scalp).
How well is this supported?
Measured directly, or defined by a published standard.
The band is a standard way of describing EEG recordings. Band edges are conventions, and what a person experiences varies. This is not medical information.
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About this number
100 Hz is above the clinical gamma band of brain activity, as recorded by EEG (sensors on the scalp). A 2017 glossary from the International Federation of Clinical Neurophysiology (IFCN) puts gamma at above 30 Hz up to 80 Hz. Research papers call activity above that "high gamma". Band edges are conventions and vary by source. Scalp measurements in this range are easily contaminated by muscle activity.
What is said about it
What is said, not what was measured
Popular descriptions link this range to peak cognitive function, cross-modal sensory processing and moments of insight, and say it is found in experienced meditators. Small studies report higher gamma activity in long-term meditators at 25 to 42 Hz and at 60 to 110 Hz.
Facts
- Frequency
- 100.00 Hz
- Kind of statement
- EEG band
- Filed under
- Brainwave bands
Sources
- IFCN glossary of EEG terms
The standard definitions of the delta, theta, alpha, beta and gamma bands.
N. Kane et al., Clinical Neurophysiology Practice 2 (2017) 170–185.
View source: IFCN glossary of EEG terms - Gamma activity in long-term meditators
Cited for the ranges in which higher gamma activity was reported: 25 to 42 Hz, in 8 practitioners and 10 others (2004), and 60 to 110 Hz (2017).
A. Lutz et al., Proceedings of the National Academy of Sciences 101 (2004) 16369. C. Braboszcz et al. (2017).