QEEG

A quantitative electroencephalogram (QEEG) is a non-invasive, painless technique used to assess brain function. This technique involves placing sensors on the scalp, and recording and measuring the dynamics and morphology of brain activity, including the shapes of the brain waves.

QEEG takes encephalogram (EEG) analysis a step further by using mathematical and statistical analysis to process the brain's average electrical activity over the recording period. The recording of brain activity obtained through the QEEG is processed and analysed mathematically and statistically to provide a detailed picture of the brain’s electrical activity. This allows for the identification of areas of the brain that may be producing abnormalities in terms of amounts and types of electrical activity, coherence, and speed of information between sites.

Brain mapping through QEEG can reveal patterns of excesses or deficiencies in brain wave frequencies that are characteristic of certain disorders. Because of this, QEEG can be used to diagnose a range of neurological and psychiatric conditions, including attention deficit hyperactivity disorder (ADHD), depression, anxiety, epilepsy, traumatic brain injury, and post-traumatic stress disorder (PTSD). QEEG also provides insight into underlying problems that may be contributing to recurring or chronic symptoms. It can also be used to track the progress of these conditions and the effects of treatments.

While medications may be helpful in managing symptoms, they often do not address underlying problems with brain function. QEEG can help identify these issues, allowing for a more targeted approach to treatment and a greater chance of success in managing symptoms.

The information provided by QEEG can also help identify underlying issues in brain function, allowing for targeted treatment approaches that may be more effective than a "one-size-fits-all" approach. For example, QEEG can be used to identify specific patterns of brain wave activity associated with different psychiatric disorders, allowing for more personalised and effective treatments.

In addition to its diagnostic and treatment applications, QEEG can also be used to assess brain function in high-performance individuals such as athletes, musicians, and military personnel. It can provide valuable information on the individual's cognitive and emotional states, as well as potential areas of weakness that may benefit from targeted training or interventions.

EEG and QEEG are valuable tools in understanding brain function and identifying abnormalities that may contribute to various disorders. By employing these techniques, healthcare professionals can provide more targeted and effective treatment for individuals struggling with neurological conditions.

Watch here Dave Siever's introduction to EEG recording and brain mapping.