Neural Frequency
Associations: Experimental Listings
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Reported Natural Oscillatory Processes
Higher frequency activity has also reported, including 40 - 60 Hz oscillations (Basar et. al. 1989). Evidence supporting coherence at these frequencies between functional columns has been found in the visual cortex, suggesting that resonance rather than specific neuronal architecture may be the substrate for specific perceptual events. . Even higher frequency activity 100-1000 Hz occurs in the cerebellum and brain stem centres. The existence of dominant frequency bands supports the notion that there exist periodic oscillations or predominant low-dimensional attractors with intermittent resonance, which maintain coherence in neural networks.
Quantum Mechanics and Brain Function
The possibility of a connection between quantum mechanics and brain function has been a source of interest since the discovery of the uncertainty principle, partly because of its implications for consciousness & free-will. The connection between the observer's mind and quantum mechanics is pivotal in some interpretations of wave function collapse. Bohm's work on the Einstein-Podolsky-Rosen conjecture, Bell's theorem and the Aspect experiments (Clauser & Shimony 1978, Aspect 1982) which display spin-correlations between a split photon pair over space-like intervals have demonstrated that hidden variable theories must be non-local, leading several researchers to postulate the idea of non-local states correlating the activity of various parts of the brain (Penrose 1987). Collapse of the wave function appears to be the aspect of quantum mechanics which best supports the sensitivity and indeterminacy of chaotic systems, since the evolution of the quantum Hamiltonian appears to avoid true chaos. Popper and Eccles (1977) and Margenau (1984) have also discussed the possibility of quantum reduction being associated with the nature of free-will and the mind. Basar (1983b) has suggested matrix theory and Feynman diagram approaches (Stowell et. al. 1989) to resonances at the neurosystems level by drawing from ideas in physics in brain modelling. Read more about the quantum relationships in neural activity here.
Scientific Essays and Reports of Interest
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Chris C. King Mathematics Department, University of Auckland. 1991 Progress in Neurobiology 36 279-308 |
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Chris King - Mathematics Department, University of Auckland |
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Fractal Neurodynamics and Quantum Chaos |
12) King C.C.(1995) Fractal Neurodynamics and Quantum Chaos : Resolving the Mind-Brain Paradox through Novel Biophysics .Advances in Consciousness Research The Secret Symmetry : Fractals of Brain Mind and Consciousness (eds.) E. Mac Cormack and M. Stamenov, John Betjamin.. |
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Generally Reported Frequency Domain Responses in Neural Activity |
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0.1 to 3.0 |
Delta - deep sleep, lucid dreaming, increased immune functions, hypnosis Monroe Focus 21 |
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1.5 - 2.5 |
Sleep |
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3.0 - 8.0 |
Theta - deep relaxation, meditation, increased memory, focus, creativity, lucid dreaming, hypnagogic state |
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4.0 - 7.0 |
Meditation, Intuitive Augmentation |
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5.0 - 10.0 |
Relaxation |
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6.0 - 10.0 |
Creative Visualization - about 6hz for a while, then up to 10hz |
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< 11.0 |
Stress Reduction (less than 11 Hz) |
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8.0 - 12.0 |
Alpha - light relaxation, "super learning", positive thinking |
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8.0 -10.0 |
Alpha - Rapid Refreshment 15 min |
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12.0 - 15.0 |
Beta (low) - relaxed focus, improved attentive abilities |
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15.0 - 18.0 |
Beta (mid) - increase mental ability, focus, alertness, IQ |
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18.0+ |
Beta (high) - fully awake, normal state of alertness, stress and anxiety |
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40.0 |
Gamma - associated with information-rich task processing and high-level information processing |
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Various Other Reported Frequencies and Data, Some Anecdotal |
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1.0 |
Feeling of well-being, pituitary stimulation to release growth hormone; overall view of inter-relationships; harmony and balance. Source: Megabrain Germany |
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1.45 |
Tri-thalamic entrainment format. According to Ronald deStrulle, creates entrainment between hypothalamus, pituitary and pineal. May benefit dyslexics and people with Alzheimer's. Source: Sonic Entrainment, by Jonathan S. Goldman, in Music: Physician for Times to Come, an anthology by Don Campbell |
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1.5 |
Those individuals whose ailments have manifested into the fourth stage of Chronic Fatigue, where some form of disease is apparent, experienced a release from the negative sensation of their symptoms when moved into 1.5HZ. Source: New York Times Science Section 1989. |
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2.5 |
Pain relief, relaxation. Source: Megabrain Germany |
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3.5 |
Feeling of unity with everything, accelerated language retention Source: Michael Hercules NuStar |
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4.0 |
Those who suffer from Chronic Fatigue exhaust very easily. When moved to 4HZ these individuals showed marked improvement in the length of time between the occurrence of exhaustion after certain exercises were completed. Source: New York Times Science Section 1989 |
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4.0 |
Enkephalins; Extrasensory perception, Encephalin production Source: Megabrain Germany |
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6.0 |
long term memory stimulation Source: Megabrain Germany |
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7.0 |
Mental and astral projection, psychic surgery |
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7.5 |
At 7.5 HZ subjects who before suffered from confused thinking reported an ease at finding solutions to troublesome problems after a re-evaluation was conducted. Source: New York Times Science Section 1989 |
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7.5 |
Inter-awareness of self and purpose, guided meditation, creativity. Source: Megabrain Germany |
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8.0 - 14.0 |
8-14 Qi Gong and infratonic Qi Gong machine. Source: China Healthways Institute |
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8.0 |
Past life regression Source: Michael Hercules, NuStar |
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8.3 |
Pick up visual images of mental objects Monroe Focus 12 ? |
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9.0 |
Awareness of causes of body imbalance and means for balance. Source: Michael Hercules, NuStar |
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9.6 |
Mean dominant frequency associated with the earth's magnetic field. Source: Octaves and windows, Equinox, April 88 |
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12.0 |
Centering, doorway to all other frequencies. Source: Michael Hercules, NuStar |
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40
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"A New Theory of Consciousness" For scientists who study the human brain, even its simplest act of perception is an event of astonishing intricacy. 40 Hz brain activity may be a kind of binding mechanism, said Dr. Rodolfo Llinas a professor of neuroscience at New York University. Llinas believes that the 40-cycle-per-second wave serves to connect structures in the cortex where advanced information processing occurs, and the thalamus, a lower brain region where complex relay and integrative functions are carried out. Source: HEALTH/SCIENCE, New Mexican April 7, 1995 |
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40 - 60 |
Anxiolytic effects and stimulates release of beta-endorphines Source: Megabrain Germany |
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Other Phenomena |
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40 |
"Auditory evoked potentials are usually divided into three categories: brainstem potentials, less than 10 msec latency; late cortical potentials, probably 100 msec and up, something like that, I don't exactly remember; and the "middle latency potentials", with a latency in the range of about 20-40 msec or so, and a duration of about 25 msec. In other words, the later the potential, the more it resembles EEG, in several respects, especially sensitivity to anesthesia and levels of consciousness. A potential with a duration of 25 msec can be elicited using a 40 hz stimulus (40 times a second that is; the stimuli can be tone bursts at various frequencies), thus producing a 40Hz steady-state potential. In, say, the Seventies and Eighties, there was a lot of interest in using middle latency auditory EPs for hearing assessment in difficult-to-test subjects, particularly with the 40Hz paradigm. The late cortical potentials are too closely linked to state of consciousness for that. ... Since the middle latency potentials are linked to state of consciousness, it makes sense to try to use them to assess levels of anesthesia. but I don't see that it has anything to do with the brain having a "resonance" at 40 Hz. In fact, since the highest amplitude EEG waves are at frequencies below 8 Hz (delta, theta), alpha waves (8-13) are in the middle, and beta (14 and up) are the smallest amplitudes, I would suspect that the resonant frequencies of cortical tissues are in the 10Hz and under range. Notice, too, that the resonant frequencies, if that's indeed what they are, seem to change with levels of consciousness and activation-- in normal adults, you don't get frequencies under 7 Hz except in sleep, and you get occipital alpha activity only in an alert, relaxed state with eyes closed. Also, if it really has to do with a resonant frequency characteristic of the brain, why are there not 40Hz visual and somatosensory potentials?" source |
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Still Other Frequency Windows and Frequencies Reported |
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