Understanding The Different Types Of Brainwave Frequencies

Post date: Apr 7, 2017 10:14:44 AM

EEG is a useful tool in the neuroengineering field, providing a tool for medical professionals to record brain wave patterns. Five brainwave frequencies are measured by the neuroimaging tool. If any of these frequencies exhibit deficiency or excess, or they are difficult to access, it is a manifestation of problems in the brain.

Image source: sciencedaily.com

The brainwave frequencies typically evaluated are the following:

Delta waves

The slowest recorded brainwave, these brainwaves are associated with the deepest levels of relaxation and sleep. When there is an excess of delta waves, it is indicative of brain injuries, learning problems, and severe ADHD. Having too little of it, on the other hand, causes inability to rejuvenate the body, revitalize the brain, or to get enough sleep.

Theta waves

Theta waves are connected to an individual’s experiencing deep emotions, creativity, and daydreaming. Having too much of these waves result to depression, hyperactivity, and impulsivity. If there is a deficiency, the individual can feel anxiety, stress, or poor emotional awareness.

Alpha waves

This frequency range appears to bridge to conscious to the subconscious mind. The right amount of it promotes mental resourcefulness and coordination. An excess of it, however, causes the inability to focus and needless relaxation, while having too little of it can result in anxiety, insomnia, or OCD.

Beta waves

Heavily involved in one’s conscious thought and logical thinking, the appropriate level of beta waves is associated with the ability to focus and complete the tasks required of him. A high level of beta activity produces an adrenaline rush, anxiety, and inability to relax, while beta wave deficiency causes ADHD, poor cognitive skills, or depression.

Image source: medscape.com

Gamma waves

These waves are important for information processing in the brain, as well as learning and memory skills. It also binds the senses whenever new information is introduced. Having too much gamma waves can result in anxiety and high-stress levels. And too little of it may cause learning disabilities and hyperactivity.

Curtis Cripe, Ph.D., is a neuroengineer with years of experience in a diverse multidisciplinary professional and academic background. Learn more by checking out this LinkedIn page.