Neurofeedback for ADHD: Exploring the Role of Quantitative EEG and Brainwave Modulation

Area of Science:

• Neuroscience
• Clinical Psychology
• Biomedical Engineering

Background:

• Attention-deficit/hyperactivity disorder (ADHD) is a prevalent neurodevelopmental disorder with complex neurobiological underpinnings.
• Symptoms of inattention, hyperactivity, and impulsivity often persist into adulthood, necessitating diverse treatment approaches.

Purpose of the Study:

• To review the neurobiological basis of ADHD.
• To examine the role of quantitative electroencephalography (qEEG) in identifying ADHD biomarkers.
• To assess the clinical utility and challenges of neurofeedback (NFB) as a non-pharmacological intervention.

Main Methods:

• A narrative review synthesizing recent neuroimaging and electrophysiological studies.
• Focus on brain regions implicated in ADHD (prefrontal cortex, caudate nucleus, thalamus).
• Emphasis on EEG-based biomarkers (theta/beta ratio) and NFB protocol efficacy.

Main Results:

• NFB can modify dysfunctional brainwave patterns associated with ADHD.
• qEEG aids in identifying neurophysiological subtypes and tailoring NFB protocols.
• Challenges include protocol heterogeneity, placebo effects (approx. 40% short-term improvement), and variability in ADHD neurophysiology.

Conclusions:

• NFB shows potential for reducing ADHD symptoms but requires more research on long-term efficacy and comparison to pharmacological treatments.
• Standardized protocols are needed, with future large-scale trials being essential.
• Personalized, multimodal treatment integrating NFB tailored to EEG-based ADHD subtypes may improve outcomes.