 All participants will undergo two sessions of neuroimaging: On the Friday prior to the first treatment session Day 0 and on the day of the third and final treatment session Day 7. Each session of neuroimaging will be 50 minutes in duration and include three imaging modalities: Resting State fMRI rsfMRI, Arterial Spin Labeling MRI ASL, and Diffusion Tensor Imaging DTI. In addition, we will obtain high-resolution anatomical volumes SPGR for each subject for the purpose of transforming each individuals imaging data into a common space for group comparisons. Subjects will lie still in the scanner and will be instructed to let their mind wander freely during the acquisition of the resting state fMRI scan, which will last 6 minutes Anon 2001. They will also be instructed to lie still during the ASL and DTI scans each lasting 8 minutes. In addition, we will obtain a high-resolution T1-weighted MP-RAGE anatomical scan for co-registration of each individuals imaging data into a common space for group statistics.. 