Test-Retest Reliability of Synchrony and Metastability in Resting State fMRI.

ABSTRACT: In recent years, interest has been growing in dynamic characteristic of brain signals from resting-state functional magnetic resonance imaging (rs-fMRI). Synchrony and metastability, as neurodynamic indexes, are considered as one of methods for analyzing dynamic characteristics. Although much research has studied the analysis of neurodynamic indices, few have investigated its reliability. In this paper, the datasets from the Human Connectome Project have been used to explore the test-retest reliabilities of synchrony and metastability from multiple angles through intra-class correlation (ICC). The results showed that both of these indexes had fair test-retest reliability, but they are strongly affected by the field strength, the spatial resolution, and scanning interval, less affected by t

SUBMITTER: Yang L 

PROVIDER: S-EPMC8773904 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature