This trial will compare a novel form of rTMS, intermittent Theta Burst Stimulation to the standard conventional high frequency left sided stimulation protocol. The Left dorsolateral prefrontal cortex will be the site of stimulation in both treatment conditions.

To look at the differences in "social cognition"- the ability to look at the interpret the social world and put yourself in someone else's shoes - between people with depression, people with frontotemporal dementia and healthy controls.

The purpose of this study is to compare the effectiveness of three different treatment options for those dealing with treatment-resistant depression.  The three different treatment options are: (1) adding aripiprazole to their current treatment, (2) adding repetitive transcranial magnetic stimula

The purpose of this study is to assess the efficacy and tolerability of Magnetic Seizure Therapy (MST) as an alternative to electroconvulsive therapy (ECT) for Bipolar Disorder (BD).

The purpose of this study is to learn about biomarkers (biological features such as proteins, genes, and brain images that indicate the state of a disease in a person), and how they can help predict treatment outcomes in patients with clinical depression.