Are you thinking what I'm thinking? Synchronization of resting fMRI time-series across subjects

• Published in: NeuroImage (Orlando, Fla.) Vol. 172; pp. 740 - 752
• Main Authors: Joshi, Anand A., Chong, Minqi, Li, Jian, Choi, Soyoung, Leahy, Richard M.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 15.05.2018; Elsevier Limited
• Subjects: Adult; Bias; Brain; Brain - physiology; Brain mapping; Brain Mapping - methods; Cortex; Data processing; Female; Functional magnetic resonance imaging; Genetic transformation; Humans; Image Processing, Computer-Assisted - methods; Magnetic Resonance Imaging - methods; Male; Neural networks; Rest - physiology; Synchronization; Time series

We describe BrainSync, an orthogonal transform that allows direct comparison of resting fMRI (rfMRI) time-series across subjects. For this purpose, we exploit the geometry of the rfMRI signal space to propose a novel orthogonal transformation that synchronizes rfMRI time-series across sessions and s...