Clinical Research Directory

Inclusion Criteria: * 18-60 years. * Elevated psychopathy as defined by the self-report psychopathy scale. * IQ \>= 80. * No prior diagnosis or current risk of Autism as defined by the autism spectrum quotient. * Negative urine drug screen. * At least 7 Days of abstinence from substance use (excluding nicotine) * Able to provide informed consent. * No change in psychiatric medication regimen, or medication-free, for 4 weeks before study. * Adequate English proficiency to complete study procedures and assessments. Exclusion Criteria: * Current or lifetime DSM-5 psychotic disorder, schizophrenia, schizoaffective disorder, bipolar disorder, or autism spectrum disorder. * IQ \< 80. * Clinically significant neurological disorder or medical illness that would make study participation unsafe, including a history of seizures or significant cardiovascular disease. * Clinically significant abnormality identified on baseline MRI. * Contraindication to MRI or inability to undergo MRI scanning. * Current pregnancy or breastfeeding. * History of head injury resulting in loss of consciousness greater than 15 minutes. * Diagnosis of dementia. * Current prescription for benzodiazepines or anticonvulsants. * Metal implants or non-removable metal objects above the waist. * Lifetime history of prior clinical treatment with transcranial magnetic stimulation (TMS). * Serious risk of suicide or homicide. * Unable or unwilling to comply with study procedures. * History of intractable migraine. * Claustrophobia or inability to tolerate enclosed spaces required for MRI procedures.