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Abstract #2112

Improved digit selectivity using VASO-CBV in 7T digit motor mapping

Icaro A.F. Oliveira1,2, Jeroen C.W. Siero1,3, Serge O. Dumoulin1,2,4, and Wietske van der Zwaag1
1Spinoza Centre for Neuroimaging, Amsterdam, Netherlands, 2Experimental and Applied Psychology, VU University, Amsterdam, Netherlands, 3Radiology, University Medical Centre Utrecht, Utrecht, Netherlands, 4Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, Netherlands


We used sub-millimeter resolution VASO fMRI at 7T to simultaneously map CBV-VASO and BOLD activation in the sensorimotor and somatosensory cortex during a finger digit mapping task. We reliably showed digit representation maps and quantified digit selectivity for both VASO-CBV and BOLD activations. VASO-CBV demonstrated a higher digit selectivity, confirming the higher spatial specificity of VASO-CBV.

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