S1 File - Relationship between Brain Age-Related Reduction in Gray Matter and Educational Attainment

Scanning sequences used in each of the three studies (Table A). Matrix size (in voxels; a x b x c; c = number of slices); voxel size (in mm; a x b x c; a x b = in plane resolution; c = slice thickness); N = number of participants; TR: repetition time; TE: echo time; FA = flip angle. Demographic characteristics of the participants from each previous study that contributed MRI data (Table B). a Study 1 ≠ Study 3; b Study 1 ≠ Study 2. Distribution of participants with high and low education across age ranges (<70 and > = 70 years-old) (Table C). (DOCX)