substance use disorder, current use of psychiatric medication, any other chronic medical illness affecting CNS function, pregnancy, and presence of any ferrous metal implant (orthodontures, cardiac pacemaker, surgical implants, etc.) which may interfere with the MEG/MRI data acquisition. The institutional review board at the University of Nebraska Medical Center approved this investigation and each participant provided written informed consent prior to participation in the study. All methods were carried out in accordance with relevant guidelines and regulations.
