 The first fMRI session will be performed at week 0 pretreatment baseline and the second session will be performed at the end of week 2. Images will be collected using a Discovery MR750 3T MRI system GE Healthcare, Waukesha, WI, USA at the Seaman Family MRI Research Centre at Foothills Hospital, Calgary. Anatomical images will include a 3D T1-weighted MPRAGE image TR9.2ms; TE minimum; flip angle20; FOV25.6 cm; voxel size1mm3. Resting state will consist of a 5-min resting-state scan during which the participants will be asked to keep their eyes closed and hold still TR2000ms;TE30ms;flip angle75 degrees; FOV24 cm; matrix size 64x64, number of slices36; slice thickness4mm Two additional functional MRI scans will also be collected while participants perform an emotional stroop task block design using the same acquisition parameters as described for the fMRI resting scan. 