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Subacute and long-term changes in cognitive functioning after administration of classic psychedelics, MDMA and ketamine: A systematic review of clinical and preclinical evidence.

Neurosci Biobehav Rev August 14, 2026 DOI: 10.1016/j.neubiorev.2026.106911 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Systematic review Peer reviewed
Topics Esketamine Ketamine MDMA
Key findings The review indicates that classic psychedelics, MDMA, and ketamine do not cause lasting cognitive impairment, and some studies suggest potential improvements in cognitive flexibility and well-being, though evidence is limited by methodological heterogeneity.

Abstract

Subacute and long-term changes in cognitive functioning after administration of classic psychedelics, MDMA and ketamine: A systematic review of clinical and preclinical evidence.