1. Participation of the caudal cerebellar lobule IX to the dorsal attentional network
- Author
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Habas Christophe, York Elizabeth, and Ramanoel Stephen
- Subjects
0301 basic medicine ,Dorsum ,Cerebellum ,Biology ,lcsh:RC346-429 ,Resting-state ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Dorsal attentional network ,Dendate nucleus ,lcsh:Neurology. Diseases of the nervous system ,Inferior Colliculi ,Resting state fMRI ,Tonsilla ,Functional connectivity ,Research ,fMRI ,Eye movement ,Anatomy ,030104 developmental biology ,medicine.anatomical_structure ,Ocular saccade ,Neurology (clinical) ,Attentional network ,030217 neurology & neurosurgery - Abstract
Background We seeked for specific cerebellar contribution within the dorsal attentional network (DAN), using Independent Component Analysis (ICA). Methods ICA-based analysis was performed on brain resting-state functional images of 19 volunteers. Results We confirmed that DAN includes bilaterally: lobules VI-VII (crus I) and VIIB-VIIIA, as previously reported by Region-Of-Interest (ROI)-based functional connectivity studies. We also found that lobule IX (tonsillae), and as well as the superior and, likely, inferior colliculi. Also belong to DAN. The part of lobule IX in relation to DAN is located more caudally and laterally, and less extensive than the more rostral part of this lobule belonging to the default-mode network (DMN). Conclusion Rostral and caudal tonsillae partake in the DMN and DAN, respectively. The latter could subserve either eye movement control in relation to the oculomotor parieto-frontal network, partially congruent with the DAN, or more cognitive functions due to functional reallocation within the DAN.
- Published
- 2018