In the article, “Cells and Molecules Underpinning Cannabis-Related Variations in Cortical Thickness during Adolescence” by Xavier Navarri, Derek N. Robertson, Iness Charfi, Florian Wünnemann, Antônia Sâmia Fernandes do Nascimento, Giacomo Trottier, Sévérine Leclerc, Gregor U. Andelfinger, Graziella Di Cristo, Louis Richer, G. Bruce Pike, Zdenka Pausova, Graciela Piñeyro, and Tomáš Paus which appeared in the October 9, 2024 issue, Table 1 appeared incorrectly. The percentages for Cannabis exposure were inadvertently switched. The row should read as follows: Cannabis exposure, not exposed (70.5%), and exposed (29.5%).

Additionally, Extended Data Figures 1-2 and 1-3 were inadvertently duplicated from Extended Data Tables 1-2 and 1-3. This issue has been rectified, and the correct Extended Data Tables 1-2 and 1-3 have been corrected accordingly.

These changes do not affect the conclusions of the paper, and the authors apologize for the error. The online version has been corrected.

Demographics for Saguenay Youth Study adolescents as a function of cannabis experimentation before age 16

https://doi.org/10.1523/JNEUROSCI.0242-25.2025