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Characterizing Task-Related Temporal Dynamics of Spatial Activation Distributions in fMRI BOLD Signals
 

Summary: Characterizing Task-Related Temporal Dynamics of
Spatial Activation Distributions in fMRI BOLD Signals
Bernard Ng1
, Rafeef Abugharbieh1
, Samantha J. Palmer2,3
, Martin J. McKeown3
1
Department of Electrical and Computer Engineering, 2
Department of Neuroscience,
3
Department of Medicine (Neurology), Pacific Parkinson's Research Center,
University of British Columbia, Vancouver, BC, Canada
bernardn@ece.ubc.ca, rafeef@ece.ubc.ca, sjpalmer@interchange.ubc.ca,
mmckeown@interchange.ubc.ca
Abstract. We present a new functional magnetic resonance imaging (fMRI)
analysis method that incorporates both spatial and temporal dynamics of blood-
oxygen-level dependent (BOLD) signals within a region of interest (ROI). 3D
moment descriptors are used to characterize the spatial changes in BOLD
signals over time. The method is tested on fMRI data collected from eight
healthy subjects performing a bulb-squeezing motor task with their right-hand

  

Source: Abugharbieh, Rafeef - Department of Electrical and Computer Engineering, University of British Columbia

 

Collections: Biology and Medicine; Computer Technologies and Information Sciences