The objective of this study is to examine the effect of a single IV dose of ketamine (0.5 mg/kg) on laboratory-induced stress in healthy participants.

Previous research has shown that modulation of a brain region in rodents, the ventral tegmental area (VTA), improves depressive symptoms. Human research has also shown that VTA self-modulation using 'biofeedback' is feasible and successful in healthy volunteers. This bi...

This study is utilizing electrophysiology, called Visual Evoked Potental (VEP) and pattern Electroretinography (ERG) to measure the electrical activity of the visual pathway. VEP measures the electrical activity of the entire vision system. When light enters the eye, it...

Glaucoma is an eye disease that results in damage to cells in the back of the eye known as the retina and poses a major risk to global public health. Primary open angle glaucoma (POAG) is the most common type of glaucoma in the United States. Exfoliation syndrome (XFS) ...

This study will evaluate the accuracy of a new concussion system at detecting concussions. The investigators will be evaluating the degree to which data collected with the device agrees with a physician's determination of a concussion. The system captures an electroence...

The purpose of this research study is to assess at how differences in the microbiome (naturally occurring bacteria) of a baby may protect, or put a baby at risk, for allergic problems. The microbiome refers to the thousands of bacteria and molds that live in and on o...

The primary objective of this study is to compare Assay results to diagnoses determined by currently accepted standards for lung cancer detection. This will be accomplished by analysis of sputum samples from three cohorts including healthy Participants, high risk Part...

Compared to IMRT, PBRT is thought to give less radiation exposure to the surrounding healthy tissues. It is possible that side effect rates with PBRT will be lower or the same compared to IMRT, but this has not been well studied to date. Although both of these radiati...

The study will examine behavioral patterns and underlying neural correlates which distinguish patients with borderline personality disorder (BPD) from healthy subjects as they participate in a two-person trust game and will determine whether administration of intranas...

This is a observational, multi-center study to assess progression of clinical features, imaging and biologic biomarkers in Parkinson disease (PD) patients compared to healthy controls (HC) and in PD patient subtypes. The primary objective of this study is to identify...