Effects of Transcranial Magnetic Stimulation on Social Cognition, Cognitive Processing, and Functional Brain Architecture

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.