View clinical trials related to Disease.
Filter by:This study will examine the underlying mental processes that determine how people understand social behavior, remember information, and think. Language, planning, problem solving, reasoning, social behavior, and memory are the critical parts of cognition that make up daily life. This study will explore the association between performance on various experimental tasks and day-to-day functioning. Healthy normal volunteers and patients with certain kinds of brain damage (primarily focal or degenerative lesions of the human prefrontal cortex) or psychiatric disorders may be eligible for this study. Candidates with central nervous system trauma, disease or dysfunction will be screened with a routine neurological examination and history. Participants may be asked to complete written tests, sit in front of a computer monitor and press a key to indicate a decision about what appears on the screen (for example, whether a statement is accurate) and answer questions from a test examiner. A skin conductance response (SCR) test may be done along with some of the cognitive tests. SCR uses electrodes (pieces of metal attached to wires) placed on the fingers to measure the subject's emotional reaction to a test. Participants may also do an evoked response test, in which the subject watches words or scenes on a TV screen while his or her responses are recorded from electrodes placed on the scalp (similar to an electroencephalogram). The tests will be scheduled for an average of one session a week, with each session lasting from 30 minutes to 3 hours. Generally, 15 sessions will be scheduled over a 1-year period. Special arrangements will be made to accommodate participants from out-of-town. Participants may have a magnetic resonance imaging (MRI) scan of the brain. This test uses radio waves and a strong magnetic field to picture structural and chemical changes in tissue. For the procedure, the subject lies on a table in a space enclosed by a metal cylinder (the scanner) for about 1 hour. In addition, some study subjects will be invited to participate in a training study designed to improve their planning or social behavior. Participation requires coming to NIH daily over a 1- to 2-month period for 1 to 2 hours each visit.
This study is a randomized clinical trial comparing outcomes of Integrated Cognitive Behavioral Treatment plus standard medications for veterans with both substance use disorders, depressive disorders versus the most commonly administered form of therapy for substance use disorders and depression, Twelve Step Facilitation (AA/NA model) group treatment plus medications.
The purpose of this study is to evaluate PET methodology to study in vivo synaptic dopamine release.
The purpose of this study is to define pathophysiological subtypes of abnormalities in subjects with cocaine dependence.
The purpose of this study is to assess the effects of chronic cocaine use on the acoustic startle response and on gating of this response in humans.
The purpose of this study is for the modeling of impaired judgement in cocaine abusers.
The purpose of this study is the use of Methylphenidate in the treatment of cocaine dependence and Attention Deficit Hyperactivity Disorder (ADHD) comorbidity.
The purpose of this study is the use of Nefazodone in the treatment of cocaine dependence and depression comorbidity.
The purpose of this study is to evaluate the effect, pharmacokinetics and dose proportionality of buprenorphine when administered to non-dependent opiate users. 1) To evaluate whether plasma concentrations of buprenorphine increase proportionally to buprenorphine dose. 2) To evaluate the dose-response of subjective and physiological effects of buprenorphine; and 3) To determine the safety of buprenorphine.
The purpose of this study is to determine the efficacy and safety of a buprenorphine/naloxone sublingual tablet formulation as an office-based therapy for opiate-dependence treatment. The developmental objective for this combination product is an expansion of therapeutic options for the treatment of opiate dependence.