QEEG Assessment
Quantitative EEG (QEEG) is a neurological assessment which identifies electrical activity and compares it to a normal Database population. EEG was traditionally used in Epilepsy and Coma patients but due to huge advances in software, has become an avenue to explore how brain patterns relate to a number of health conditions.
QEEG can identify irregular waveforms which affect our behaviour and health. Dysfunction is usually highlighted in the brain maps, when power levels are either extremely low or high. Poorly connected (hypo coherent) and over-connected (hyper coherent) circuitry appearing in the QEEG also represents sub-optimal brain performance and can be modulated.
The QEEG Examination
There is no evidence in literature indicating negative or harmful effects suffered in or following a QEEG. This is because no actual current is delivered to you. The equipment simply measures electrical signals generated by billions of neurons located close to the surface of your head.
A specialized cap containing electrodes and wires will be carefully placed on your head and ear electrodes clipped onto your ears. This process can take time as each electrode must be activated on the amplifier.
The actual QEEG is pain-free but you may feel a scratching sensation on the scalp when the electrode sites are scrubbed with a blunt implement. A water-soluble gel will be injected into each electrode to help with the reading and will be wiped off at the end of the testing. Please advise beforehand if you have especially sensitive skin or allergies.
You will be asked to relax and stare at a point for 5 minutes whilst recording occurs (Eyes open-EO). It is important to keep as still as possible and keep blinking to a minimum. The task will be repeated with your eyes closed (EC) whilst wearing a soft eye mask.
The QEEG will be carried out by a qualified Technologist in the discipline of QEEG and Neurofeedback. We operate within the highest level of professional standards and ethical principles (PSEP) whilst maintaining a high level of professional training and service. QEEG and ERP assessment may be outsourced to another specialist in the field. We aim to produce the most conclusive and well-informed report and this may sometimes require input from overseas experts or Neurofeedback practitioners specializing in a particular condition.
Preparation for the QEEG
For the QEEG recording it is recommended that you wash your hair thoroughly prior to the appointment. The night before is fine. Do not use hair gels, sprays, or chemicals on your hair. A clean scalp optimizes the reading through the electrodes.
Avoid all forms of stimulant 14 hours prior to your assessment as these will distort your results. Stimulants include coffee and chocolate, cigarettes, energy drinks and anything with a high level of sugar.
Note accurately on your Personal and Clinical Data Sheet, both the dosage and frequency of all prescription drugs taken as well as general medical history. Do not take depressants, sedatives (either prescribed or over the counter), relaxants or alcohol within 14 hours of your QEEG. Recreational drugs will also distort your results so please abstain if possible.
The Results
Each electrode site measures and records your brain waves throughout the QEEG. The waveforms are then manipulated and interpreted by state-of-the-art software which compares your brain activity to other people of the same age and sex, world-wide.
The qEEG report utilizes a range of variables such as wave power and amplitude, efficiency, coherence and connectivity across the frequency bands to construct maps and models of your brain activity. Specific queries regarding the results can be discussed when the Report is presented at follow up appointments.
The Treatment Plan
Test results will be examined in depth, and the treatment plan formulated to address negative symptoms of your presenting condition. This will usually comprise a series of Neurofeedback (NF) sessions targeting problematic brain areas and/or poorly performing circuitry.
Brain Mapz uses Neuroguide swLORETA Z Score Neurofeedback to gain optimum results. This program is widely accepted as one of the most successful neurofeedback programs and is used by universities, research facilities and clinics all over the world. Over 600 studies including PET and FMRI have validated the treatment program.
Occasionally results are such that a referral to another specialist or intervention is recommended in lieu of Neurofeedback treatment. For example, a clinical EEG or other tests may be required to diagnose serious diseases like Epilepsy, Dementia or other Brain Pathologies.