Comparison of DMN sub-network dwell time between Alzheimer’s and age-, gender-, and education-matched cognitive normal subjects.

The median, IQR, and p-values from the Wilcoxon two-sided rank sum test are reported for the age, education, STMS, CDR-SOB, and dwell time in strong DMN sub-network modular configurations for AD subjects and age-, gender-, and education-matched CN subjects (the gender proportions and the p-value of the chi-squared test between groups is reported as well). DMN dwell time is defined as the proportion of time (reported as a percentage) that a subject spends in a particular modular configuration (strong DMN sub-network configurations in this case) during the TF-fMRI scanning session.AD-Alzheimer’s disease, STMS-short test of mental status, CDR-SOB-clinical dementia rating scale sum of boxes, aDMN-anterior default mode network, DT-dwell time, pDMN-posterior default mode network, vDMN-ventral default mode network, dDMN-dorsal default mode network, CN-cognitively normal, IQR-interquartile range, TF-fMRI-task-free functional magnetic resonance imaging.