What Are Gamma Waves?
Gamma waves or gamma rhythms are patterns of neural oscillation in humans with a frequency between 30 and 100 Hz, with the 40 Hz point being of particular interest. Gamma waves between 30–70 Hz may be classified as low gamma, and those between 70–150 Hz as high gamma. Gamma rhythms are strongly correlated with large-scale brain network activity and cognitive phenomena such as working memory, attention, and perceptual grouping. Altered gamma activity has been observed in mood and cognitive disorders (Alzheimer's, epilepsy, schizophrenia)—but meditation and neurostimulation can also enhance gamma amplitude.
Gamma Wave Simulator
Epistemological Experiment: "Disturbingly Poignant"
[1] Wikipedia: Gamma wave
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