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Chemistry and DNA connections

How genes, brain chemicals, EEG patterns and brain damage connect, with the strength of evidence for every link

Education and research use only. Links are textbook-level knowledge, and an EEG alone cannot diagnose a condition. Gene numbers are real counts from ClinVar and describe DNA changes in general, not any person.

Connection map

DNA: genesChemical systemsEEG patternDamage and diseaseTH225DDC111SLC6A3160COMT394DRD217MAOA176TPH212SLC6A410HTR2A56DBH53SLC6A218CHAT179CHRNA7203GAD137GABRA1105GABRG2184GRIN2A374GRIN2B340SLC1A228NR3C131FKBP57MTNR1A118SCN1A2.3kAPP100PSEN1162APOE34BDNF23DopamineSerotoninNorepinephrineAcetylcholineGABAGlutamateCortisol (stress axis)MelatoninDelta 1–4 HzTheta 4–8 HzAlpha 8–13 HzBeta 13–30 HzGamma 30–45 HzSpikes / spike-waveStrokeBrain injuryEpilepsyAlzheimer's disease
establishedsupportedexploratorynumber in a gene box = harmful variants in ClinVar (2026-10-09)

How to read this

Select any box to see what it connects to and why. Lines: solid = established, dashed = supported, dotted = exploratory.