MRI data were collected with a 3 T Siemens Trio MR scanner using an 8-channel head array coil. Blood oxygen-level dependent (BOLD)-sensitive fMRI used a T2*-weighted gradient echo spiral echo-planar imaging sequence with an echo time of 30 milliseconds, repetition time of 2.49 ms, and a low flip angle of 20° to minimize physiological noise (Gonzalez-Castillo et al., 2011 (link)). A total of 128 brain volumes were acquired in a single fMRI session, each consisting of 42 slices with a slice thickness of 3 mm and a field of view of 192×192 mm using a 64×64 grid. High-resolution 3D structural T1-weighted spin echo images were obtained after the first session of BOLD fMRI (TI=800, echo time =3.93, repetition time =1540 ms, flip angle 9°; 256×256 field of view; 192 slices).
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Functional MRI Acquisition Protocol
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Corresponding Organization : University of Copenhagen
Other organizations : Rigshospitalet, Hvidovre Hospital, University of Oxford, Bispebjerg Hospital
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Variable analysis
independent variables
- Magnetic field strength of 3 T
- Blood oxygen-level dependent (BOLD) signal
- 8-channel head array coil
- T2*-weighted gradient echo spiral echo-planar imaging sequence with an echo time of 30 milliseconds, repetition time of 2.49 ms, and a low flip angle of 20°
- High-resolution 3D structural T1-weighted spin echo images with TI=800, echo time =3.93, repetition time =1540 ms, flip angle 9°, 256×256 field of view, 192 slices
- No positive or negative controls were explicitly mentioned.
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