Both static and dynamic FC differences between cognitively impaired and non-impaired active fighters were explored using resting-state fMRI. Reduced network strength in anterior default mode network and cerebellar network were observed in impaired fighters, as compared to the non-impaired fighters. Four dynamic FC states were identified with k-means clustering and abnormities in state 2 were observed in impaired fighters. Higher classification accuracy was obtained using dynamic FC matrices as input features to a non-linear classifier, as compared to using static FC matrices as input features, which demonstrates that the time-varying brain activities carry richer cognitive impairment-related information.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords