RESEARCH VOLUNTEERS: Healthy male and female (age 21-60) MARIJUANA SMOKERS needed to study effects of marijuana on brain activity and decision-making. The study involves 2-3 outpatient visits and a 5-day/5-night stay at the NYS Psychiatric Institute and includes Magnetic Resonance Imaging (MRI) scans. Compensation for time…
This study is for women with breast cancer who will be undergoing lumbar puncture to evaluate for the presence of leptomeningeal metastasis, a complication in which the cancer spreads to the membranes (meninges) surrounding the brain and spinal cord. This condition is typically diagnosed by examining the cerebrospinal fluid…