TMS Modulation of Insula-related Brain Networks

Inclusion Criteria: 1. generally healthy 2. between the ages of 18-55 3. right-handed Exclusion Criteria: 1. significant health problems (e.g., current and uncontrolled liver, lung, or heart problems) or presence of medical illness likely to alter brain morphology (including history of seizure, history of epilepsy in self or first degree relatives, stroke, brain surgery, head injury, and known structural brain lesion) 2. current diagnosis of Axis I psychiatric disorders (e.g., depression, anxiety disorder, schizophrenia) 3. meet DSM-5 criteria for current substance use disorder other than nicotine 4. use of psychoactive medications that would result in a positive urine drug screen 5. Current use of medications known to lower the seizure threshold 6. positive breath alcohol concentration 7. presence of conditions that would make MRI unsafe (e.g., metal implants, pacemakers) 8. among women, a positive urine pregnancy test 9. vision that cannot be corrected to 20/40