Sonata 1.5 tesla mri scanner

Brain images were acquired using a Siemens Sonata 1.5-Tesla MRI Scanner. Twenty axial-oblique anatomic images (TE 11 ms; TR 420 ms; FOV 20 × 20 cm; 6mm slice thickness, no gap; 256 × 256 × 1 NEX) parallel to the intercommissural line were acquired prior to functional imaging. A single-shot gradient echo, echo-planar pulse sequence (FA 80°; TE 50 ms; TR 2000 ms; FOV 20 × 20 cm; 6mm slice thickness, no gap; 64 × 64 × 1 NEX) was used for acquisition of functional images at the twenty slice locations used for the anatomic images. Stimuli were presented at jittered interstimulus intervals of 4, 5, 6, and 7s durations, with occasional longer intervals (i.e., null trials). High-resolution anatomical images were acquired for 3D co-registration (sagittal MPRAGE acquisition, FA 8°; TE 3.65 ms; TR 2000 ms; FOV 256 × 256 mm; 1 mm slice thickness, no gap; 256 × 256 × 1 NEX; 160 slices total). A maximum of 10 imaging runs was collected for each participant.

Acquisition of brain images was conducted using a Siemens Sonata 1.5-Tesla MRI Scanner. Twenty axial-oblique anatomic images (TE 11 ms; TR 420 ms; FOV 20 × 20 cm; 6mm slice thickness, no gap; 256 × 256 × 1 NEX) parallel to the intercommissural line were acquired prior to functional imaging. A single-shot gradient echo, echo-planar pulse sequence (FA 80˚; TE 50 ms; TR 2000 ms; FOV 20 × 20 cm; 6mm slice thickness, no gap; 64 × 64 × 1 NEX) was used for acquisition of activation images at the twenty slice locations used for the anatomic images. Jittered interstimulus intervals of 4, 5, 6, and 7s durations were used for trial presentation, with occasional longer intervals (i.e., null trials). High-resolution anatomical images were acquired for 3D co-registration (sagittal MPRAGE acquisition, FA 8˚; TE 3.65 ms; TR 2000 ms; FOV 256 × 256 mm; 1 mm slice thickness, no gap; 256 × 256 × 1 NEX; 160 slices total). A maximum of 10 imaging runs were acquired for each participant.