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Abstract #3897

Use of functional correlation tensors for correlating white matter fMRI and brain structure

Tory Frizzell1,2, Lukas Algis Grajauskas2,3, Careesa Chang Liu1,2, Sujoy Ghosh Hajra1,2, Xiaowei Song2,4, and Ryan C.N. D'Arcy2,5,6
1Engineering Science, Simon Fraser University, Burnaby, BC, Canada, 2SFU ImageTech Lab, Health Science and Innovation, Surrey Memorial Hospital, Fraser Health, Surrey, BC, Canada, 3Cummings School of Medicine, University of Calgary, Calgary, AB, Canada, 4Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada, 5Faculty of Applied Science, Simon Fraser University, Burnaby, BC, Canada, 6Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada

White matter functional activity is a neglected area of research and key component for understanding the brain’s ability to adapt and learn. Participants completed a fine motor task during functional scans. DTI images were also collected for structural comparison. Functional correlation tensors were computed to examine local functional signal synchronicity. Strong agreement was found between the functional anisotropy maps and the structural anisotropy maps. Functional correlation tensors substantiate white matter functional response and identify a novel link between structure and function.

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