ATAI Investor Presentation Deck

CIAS Phase 2a study showed wide-spread beneficial qEEG changes I EEG data confirmed CNS activity in schizophrenia population Dose dependent, widespread qEEG changes observed across brain regions EO - Increased alpha/ASI (middle & high doses) decreased beta (lowest dose) EC - Observed elevations in resting state alpha increased ASI and decreased TBR Suggesting a relaxed wakeful state without drowsiness at the mid to high dose levels 24

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