code for white matter analysis of Department of Defense Alzheimer's Disease Neuroimaging Initiative (DoD-ADNI) data
White matter microstructure analyses:
Analyses were conducted using FreeSurfer's TRACULA
Statistics
See tracula_stats.sh for use of along-tract statistics and mri_glmfit
See tracula_stats_matrices.zip for matrices used in glms
Visualization
See concatenate_tracula_profile_data_max.py for concatenation of along-tract data to be used for data visualization
See tract_profile_plot.py for creation of tract profile plots
White matter macrostructure analyses:
Robust regression was conducted in R using the MASS package
See dodadni_regressions.R
Cognitive performance analyses:
Elastic net regressions were conducted in R using the beset package
See dodadni_regressions.R