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Peer-reviewed articleOpen access

Matters arising: Methodological concerns and interpretative limitations of assessing subjective effects of ketamine.

Janavičius R

Npj mental health researchSep 22, 2026License: open access0 citationsDOI: 10.1038/s44184-026-00240-3

Abstract

The letter addresses critical issues in the methodology and conclusions of the meta-analysis, including inconsistencies in study design, methodological flaws in comparing correlation coefficients, and discrepancies in reported results and their interpretation. It contributes significantly to the ongoing discussion on psychedelic-assisted therapies and highlights the need for more standardized methodologies in future research.

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Ketamine

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