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Studies show COVID-19 Can Alter Brain Function & Cause Brain Fog, Fatigue & Focus Issues

Updated: Feb 5, 2023

But In Most Cases, It Can Be Retrained Back To Normal

Many people who recover from COVID-19, including those who only had mild symptoms, complain of what has been dubbed COVID brain fog. In a recent paper in the journal Neurology Clinical Practice, researchers from New York-Presbyterian and Columbia University Irving Medical Center described neurological symptoms of COVID-19 to include headache, fatigue, and dizziness. Clinicians across the country similarly report patients who complain of these symptoms along with memory loss, confusion, and difficulty focusing.

A recent study in the Journal of Clinical Medicine, titled Changes in EEG Recordings in COVID-19 Patients as a Basis for More Accurate QEEG Diagnostics and EEG Neurofeedback Therapy: A Systematic Review, concluded:

“The results of this analysis clearly indicate that the SARS-CoV-2 virus causes changes in the nervous system that can be manifested and detected in an EEG recording. Thus, the implementation of Quantitative EEG brain mapping would enable a more precise, objective description of these changes and would create a solid base for attempts to implement EEG neurofeedback therapy as a part of comprehensive treatment for patients who aspire to improve their neurological symptoms acquired in connection with the SARS-CoV-2 virus infection”.

If you or someone you know is experiencing long COVID symptoms such as headaches, fatigue, dizziness, restless sleep, memory loss, or problems concentrating, a Quantitative EEG brain map may be the best way to identify the regions of the brain causing the symptoms. Once the source of the problem is identified, a personalized treatment plan to normalize the brain function can be implemented.

An EEG records your brain’s electrical activity similar to how an EKG records your heart activity. A brain map then compares your brain’s electrical activity to a large, normative database of people your same age and gender. This helps identify specific brain regions where neurons are significantly over or under functioning. A brain map takes about 30 minutes to record and is neither invasive nor painful. You simply wear a cap with 19 sensors that record your brain’s electrical activity while you relax in a chair.

The Brain Performance Center is the largest and most trusted brain mapping & neurofeedback center in the country with 3 Southern California locations including Beverly Hills, Calabasas and Westlake Village. Our Director of Neuroscience, Bryan Hixson, is one of only a few people in the world that has performed over 15,000 EEG brain maps. He has contracted with organizations including the U.S. Department of Defense, the U.S. Olympic Team, the Red Bull High Performance Center, as well as professional sports teams. For more information, please see our Virtual Brochure or visit us at You can also email us at or call us at 800-385-0710.


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