CymaVibe - Brain Waves
The human brain has natural low-frequency rhythms that relate to the stages of consciousness: Alpha, Beta, Theta, and Delta. We're able to image visible frequencies as low as 3 Hz, so we are able to make visible the full range of brain frequencies through the Cymascope.
Delta Brain Wave
The Delta rhythm of the human brain, also known as Slow-Wave Sleep, typically occurs between 0.5 and 3 Hertz and is one of the most powerful of all brain wave rhythms. The Delta Rhythm occurs in deep sleep in adults but is the predominant brain state in infants that are awake, even up to five years old. Arising either in the thalamus or in the cortex and their presence stimulates the release of several hormones, including growth releasing hormone GHRH. Women have been shown to have more delta wave activity although this does not become apparent until early adulthood, with men showing greater age-related reductions in delta wave activity than women. Presented as a 3 Hertz brain rhythm, made visible on the CymaScope.
Theta Brain Wave
The Theta Rhythm of the human brain occurs between 4 and 7 Hertz and sometimes referred to as the Hippocampal Theta Rhythm or the Rhythmic Slow Activity. It is associated with REM, dreaming, sleep and the state between sleeping and waking, or ‘paraconscious' state. The Theta rhythm is present in meditative states and associated with deep spiritual connection and unity with the universe, in addition to periods of inspiration and great creativity, such as art. Presented as a 7 Hertz brain rhythm and fittingly there is art evident in the unusual, moire-like, interference patterning, ‘painted’ by the low frequency sound.
Alpha Brain Wave
The Alpha Rhythm of the human brain occurs between 8 and 13 Hertz during wakeful relaxation with closed eyes. Alpha waves are reduced with open eyes, drowsiness and sleep. Alpha waves originate from the occipital lobe and appear to play an active role in network coordination and communication. Alpha waves are also associated with our intuition, which becomes most powerful in the lowest part of this brain rhythm, that is, around 8 Hertz. Alpha waves with eyes closed are the strongest of all brain rhythms. Displayed as a 10 Hertz brain rhythm and is unusual in that it appears to resemble the two hemispheres of the brain while the strange central feature could be thought to represent the Medulla or brain stem.
Beta Brain Wave
The Beta Rhythm of the human brain occurs between 12.5 and 30 Hertz during wakeful, thinking, with eyes open. Beta waves are also associated with a heightened state of alertness, logic and critical reasoning and are important for effective functioning during the day. This higher frequency brain state translates to greater detail with what appears to be a navigational compass as a central feature, seemingly pointing the way to the various brain lobes.
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