This (XNAT central-based) dataset corresponds to the following publication: Zacharopoulos G, Sella F, Cohen Kadosh R. The impact of a lack of mathematical education on brain development and future attainment. Proceedings of the National Academy of Sciences of the United States of America 2021; Accepted. For more information about the project, please read the README file. You can get this by clicking Download Images - In column 1 unselect All, and only select README. In column 3 choose Option 2: ZIP download - your download should be less than 1MB (if not, you may have other sessions selected).