19-channel neurofeedback
Research Papers
QEEG and 19-Channel Neurofeedback as a Clinical Evaluation Tool for Children with Attention, Learning and Emotional Problems
Attention, learning and emotional problems can have different causes that cannot be easily and clearly distinguished by clinical testing methods. But, QEEG and, even more so, live 19-channel Z-score training under different task conditions can both give very detailed insights about the specific functioning and dysregulations of an individual’s brain. The clinical intake evaluation of the child is optimized by including a quantitative, neurometric analysis of an eyes open (EO) and eyes closed (EC) EEG acquisition combined with a real-time analysis of the child’s (in vivo) brain functioning during a specific set of conditions, as described below. This method was developed and refined with more than 300 children who were tested between June 2012 and April 2014. The goal is to get as much information as possible in only one session lasting 45 to 60 minutes. The different parts of the evaluation consist of: eyes open (EO) and eyes closed (EC) collection of data, display of the actual brain waves, listing of the Z-score values (also presented as plots or instant brain maps with different task conditions), followed by games to play with a challenge condition. In addition, current source density (CSD) sLORETA of the different wave frequencies (usually delta, theta, alpha, beta, and gamma bands), distribution and velocity are shown as they change, as well as when the brain evaluates emotions. The session ends with a brief, individual 19-channel training with video feedback. Because of the usefulness of the information obtained from using this QEEG method, the author recommends that QEEG and an interactive neurofeedback session be included as a standard component in the diagnosis of and treatment planning for children with attention, learning and emotional problems.
View Full Paper →Clinical Perspectives of 19-Channel Z-Score Neurofeedback: Benefits and Limitations
Z-Score neurofeedback has expanded to include 19-channel models (19ZNF) such that clinicians now have the option to use from 1 to 19 electrodes in a z-score neurofeedback protocol. Benefits and limitations of this new model are discussed from the clinical perspective of an early adopter of 19ZNF who has more than 4 years of experience with this modality after having several years of experience with QEEG-guided NF (QNF). Comparisons between QNF and 19ZNF are discussed. It has been suggested that 19ZNF can bring about positive clinical outcomes in fewer sessions than traditional NF, which matches the author's experience (average of 38 with QNF vs. an average of 11 with 19ZNF). Unique implications of 19ZNF that have not yet been discussed in the literature, such as the advantage of once-per-week sessions, or questions about whether there could be times when change can occur too fast, are introduced. Directions for future research to further evaluate 19ZNF are suggested.
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