Meeting Banner
Abstract #4662

Frequency specificity of regional homogeneity in the resting-state human brain

Xiaopeng Song 1 , Yi Zhang 2 , Zhenyu Zhou 3 , and Yijun Liu 1

1 Department of Biomedical Engineering, Peking University, Beijing, Beijing, China, 2 School of Life Science and Technology, Xidian University, Xi'an, Shanxi, China, 3 GE Health care, Beijing, Beijing, China

To examine the frequency characteristics of regional homogeneity (ReHo) in different brain areas, a data-driven method, Empirical Mode Decomposition, was adopted to decompose the time series of each voxel into several components with distinct frequency bands. ReHo in each of the components were then calculated. Results showed that ReHo in cortical areas were higher and more frequency-dependent than those in the subcortical regions. BOLD oscillations of 0.02-0.04Hz mainly contributed to the cortical ReHo, whereas the ReHo in subcortical areas involved a wider frequency range. Our work may advance the understanding of the neural-physiological basis of local BOLD activities.

This abstract and the presentation materials are available to members only; a login is required.

Join Here