Imaging data were collected on a Siemens Prisma 3T system using a 64-channel foam-padded phased array head coil. An HCP-style multiband fMRI sequence was used. A total of four six-minute rs-fMRI runs (504 volumes) were completed; two runs before and two runs after tDCS. Participants were instructed to rest with their eyes open during scanning and were video monitored to ensure they stay awake. Image preprocessing was completed with AFNI software using standard steps (Supplemental Materials ).74 (link)
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Resting-State fMRI Acquisition and Preprocessing
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Corresponding Organization : National Center for PTSD
Other organizations : University of Wisconsin–Madison, The University of Texas at Austin, University of Connecticut, Baylor College of Medicine, Michael E. DeBakey VA Medical Center
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Variable analysis
independent variables
- TDCS (transcranial direct current stimulation)
- Rs-fMRI (resting-state functional MRI) data
- Siemens Prisma 3T system
- 64-channel foam-padded phased array head coil
- HCP-style multiband fMRI sequence
- Four six-minute rs-fMRI runs (504 volumes) completed
- Participants instructed to rest with eyes open during scanning
- Video monitoring to ensure participants stay awake
- Image preprocessing completed with AFNI software using standard steps
- Two rs-fMRI runs before tDCS
- Two rs-fMRI runs after tDCS
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