31/08/2026
Psychiatry has always depended heavily on what patients report and what clinicians observe.
That information matters, but symptoms often overlap. Poor concentration can appear in ADHD, depression, anxiety, trauma, sleep problems, and cognitive decline. Two patients can describe nearly identical symptoms while having very different patterns of brain activity.
A new review in the Journal of Personalized Medicine examines how qEEG can add objective neurophysiological data to the assessment process.
qEEG can measure:
• Activity across delta, theta, alpha, beta, and gamma frequencies
• Differences between the left and right hemispheres
• Connectivity between brain regions
• The likely cortical sources of abnormal activity
• Changes in brain function during treatment
This does not replace the clinical interview or establish a diagnosis on its own. It gives clinicians another layer of information when symptoms alone do not tell the full story.
With modern dry, wireless EEG systems, collecting that information is becoming much more practical for everyday clinics.
Precision psychiatry starts with understanding the individual brain—not simply assigning everyone with similar symptoms to the same category.
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Reference:
Amico, F., Shannon, S., & Rondeau, S. (2026). Quantitative Electroencephalography as a Complement to Symptom-Based Psychiatric Diagnosis: A Narrative Review. Journal of Personalized Medicine, 16, 261.
https://doi.org/10.3390/jpm16050261