Page 127 - Like me, or else... - Michelle Achterberg

Longitudinal changes of brain and behavior
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Figure 1. Social Network Aggression Task (SNAT). a) Visualization of one trial with negative social feedback. b) Noise blast duration is influenced by condition, wave, and condition ˟ wave. c) Individual differences in change for noise blast after positive, neutral and negative social feedback did not differ between the VIPP-Twin and control group.
MRI data
Acquisition
MRI scans were acquired with a standard whole-head coil on a Philips Ingenia 3.0 Tesla MR system. To prevent head motion, foam inserts surrounded the children’s’ heads (see also Achterberg and van der Meulen (2019)). The SNAT was projected on a screen that was viewed through a mirror on the head coil. Functional scans were collected during three runs T2*-weighted echo planar images (EPI). The first two volumes were discarded to allow for equilibration of T1 saturation effect. Volumes covered the whole brain with a field of view (FOV) = 220 (ap) x 220 (rl) x 111.65 (fh) mm; repetition time (TR) of 2.2 seconds; echo time (TE) = 30 ms; flip angle (FA) = 80°; sequential acquisition, 37 slices; and voxel size = 2.75 x 2.75 x 2.75 mm. Subsequently, a high-resolution 3D T1scan was obtained as anatomical reference (FOV= 224 (ap) x 177 (rl) x 168 (fh); TR = 9.72 ms; TE = 4.95 ms; FA = 8°; 140 slices; voxel size 0.875 x 0.875 x 0.875 mm).
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