Fig. 2: Spatial distribution and tSNR of marmoset components.
A Probability map showing the number of functional components in which each voxel was active (thresholded as indicated in Fig. 1). Voxels most frequently recruited across components are concentrated in prefrontal, auditory, visual, and subcortical regions. B Mean tSNR map across marmosets showing the average quality of the BOLD signal across the brain, with higher tSNR values represented in yellow and lower values in black. The similarity between frequently recruited regions and high-tSNR areas confirms that component patterns were not driven solely by signal quality. In both panels, the maps are shown on flat surface representations of the marmoset brain, with white lines delineating the Paxinos parcellation93 of the NIH marmoset brain atlas85, and on coronal slices of a marmoset brain anatomical image at different inter-aural levels.
