MRI scans reveal changes in brains wiring after coldwater shock
Image acquisition was performed on a 3-Tesla Siemens Magnetom Lumina scanner . We obtained T1-weighted MPRAGE images with the following parameters: repetition time =1900 ms, echo time =2.74 ms, flip angle 8°, field of view : 256 × 256 mm, voxel size: 1.0 × 1.0 × 1.0 mm, and 192 axial slices.
Functional and anatomical data were co-registered; segmented into grey matter, white matter, and CSF tissue; and normalised into standard MNI space using a unified segmentation and normalisation procedure [ Network connectivity analysis. After the pre-processing and denoising steps, we used ROI-to-ROI connectivity measures of large-scale networks. The large-scale networks’ ROIs were defined from the default CONN’s networks’ atlas dataset of 497 subjects). The networks’ atlas delineates an extended set of classical networks: default mode network , sensorimotor , visual , salience/cingulo-opercular , dorsal attention , frontoparietal/central executive , language , and cerebellar .
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