Omega Entropy from brain functional MRI is differentially associated with Cognitive performance

Abstract

Background: Resting‐state functional MRI (rs‐fMRI) connectivity has been widely studied, but grasping the complexity of brain activity has been difficult. Dimensional complexity measures like Omega Entropy (Ω) are based on Eigenvalue (EV) spectrum analyses and can be used to estimate the complexity of rs‐fMRI brain activity.