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The 5 Main Brainwaves

As early as the 1930s, neuroscientists have rendered the ability to detect brain activity, based on the active and dormant flow of neurons. Some of these neurons can be accurately measured as they activate in a flurry, in large groups. The large groups of active neurons are known as a neural ensemble. Neural ensembles are mostly associated with the significant functions of the brain. The brain must even compute the proper neural activity to properly fall asleep, and stay asleep.

The levels of activity of these neural ensembles are recorded on an Electroencephalography (EEG) machine, which is used to monitor electrical brain waves. It does so when negatively charged electrodes are placed along the scalp, while the positively charged ionic current of the active neurons in the brain cause a magnetic disruption in the frequency of the electrodes, displaying a dynamic amplitude of neural activity.

The measurement of frequency of neurons is measured in 5 main groups, known as:

  • Delta (0-4 Hz)
  • Theta (4-8 Hz)
  • Alpha (8-12 Hz)
  • Beta (12-40 Hz)
  • Gamma (40-100 Hz)

The ability to measure the levels of neural activity in each of these categories has helped greatly in the field of mental health diagnosis and treatment. Too much or too little activity in each of these areas often displays disorders or disruptions in the individuals neural activity. Such disruptions can lead to difficulties with focus, sleep, awareness, etc.. The main treatments for disrupted brain waves include stimulants, depressants, and deep meditation. By rendering these frequencies binaurally, or using both ears, so that the frequency is the main focus, can allow the audio cortex to resonate with the neural activity of the frequency. For the same reason that songs get stuck in a persons head, the audio cortex will hold the frequency in memory for as long as it decides to, until the next meditation.

Delta (0-4 Hz)

Delta waves, being the slowest of brain function, are often associated with unconscious bodily functions, such as the heartbeat and digestion, and the body's restorative abilities, during sleep and relaxation.

Too much delta activity can lead to difficulties with thinking or focusing, and the ability to retain information or learn.

Too little delta activity can make it difficult to properly heal, or rejuvenate, and may present sleep disorders.

 

Theta (4-8 Hz)

Theta waves, can be a very helpful and powerful brainwave, when at an optimal frequency. Theta waves are often involved with intuition, creativity, as well as camaraderie, communion, and connection.

Too much theta activity can lead to impulsive manners, bouts of depression, and often can be referred to as a somewhat hypnotic state, allowing the individual to be easily persuaded.

Too little theta activity can cause the individual to lose a sense of their emotions, as well as increase anxiety.

 

Alpha (8-12 Hz)

Alpha waves are greatly involved in our conscious ability to accept or allow our subconscious mind to flow freely. On occasion, the Beta waves may overtake the alpha waves, known as "alpha blocking" in which the conscious overtakes the subconscious, as a survival mechanism, while an excess of alpha waves can cause deep relaxation when necessary.

Too much alpha activity can lead one to be too relaxed, lacking in focus, and fantasize frequently.

Too little alpha activity can cause an individual to be come obsessive-compulsive, anxious, stressed, and unable to sleep.

 

Beta (12-40 Hz)

Beta waves are mostly associated with our conscious daily cognitive processes in the waking state. This includes our ability to stay task-oriented, to focus, and solve problems. Much of our necessary logic is best refined when the beta waves are at an optimal frequency.

Too much beta activity can lead to over-stimulation, high anxiety, and stress.

Too little beta activity can lead to depression, lack of attention, and poor problem solving or logic skills.

 

Gamma (40-100 Hz)

Gamma waves are mostly associated with our brains ability to intake and organize information. Much of our memory and long term learning abilities are measured in gamma waves. The 40 Hz Gamma wave has been known to help us connect with our perceivable senses.

Too much gamma activity can lead to anxiety, stress, or over-stimulation.

Too little gamma activity can lead to depression, lack of attention, or difficulty learning.

 

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