View clinical trials related to Disease.
Filter by:The purpose of this study is to identify and evaluate therapist behaviors that affect how well and how long adolescent patients stay in treatment for depression.
This study will evaluate emotional processing biases in the brain while viewing facial expressions in adults with current or remitted major depressive disorder and healthy volunteers.
This 10-week study will examine whether propranolol, a medication that blocks the activity of the stress hormones adrenaline and noradrenaline, can relieve acute stress disorder (ASD) and symptoms from persisting long-term. ASD is a condition that some people develop soon after exposure to trauma. They may be anxious, depressed, have trouble sleeping, startle easily, have difficulties concentrating, and feel as though the event is happening again. Propranolol has been used for many years to treat high blood pressure and heart disease, and has been found useful in treating anxiety states such as social phobia and migraine. Men and women between 18 and 65 years of age who were recently exposed to trauma (between 1 and 3 weeks of evaluation in this study) may be eligible for this study. Candidates must be diagnosed with ASD and must have been mentally healthy before the traumatic event. They will be screened for the study with a medical and psychiatric interview, physical examination, electrocardiogram (EKG), and blood and urine tests. Participants will be evaluated with the following procedures: - Neuropsychological tests using pen-and-paper and computer tests to evaluate cognitive function, particularly memory, learning, attention and concentration, and vocabulary and naming. - Emotion-related performance tasks to determine if the study medication can weaken emotionally arousing information by blocking the activity of adrenaline and noradrenaline. Subjects perform emotion-related and neutral tasks, such as looking at pictures with neutral, pleasant, or unpleasant content, both before and after treatment with the study medication (see below). - Traumatic script exposure: Subjects recount the traumatic event that caused them to develop ASD. The description is summarized, recorded, and played back to the subject. During the playback, physiological responses, such as heart rate and skin conductance (sweating), are recorded using electrodes taped to the hand and chest. - Fear conditioning to evaluate the response to an unpleasant stimulus: Several mild electrical shocks are delivered to the wrists while the subject looks at colored squares. Heart rate and skin conductance are measured. - Magnetic resonance imaging (MRI) to examine brain structure. The subject lies on a table that is moved into the MRI scanner (a narrow cylinder containing a strong magnetic field) and must remain still during the actual scanning. Earplugs are worn to muffle loud noises caused by electrical switching of radio frequency circuits used in the scanning process. After the evaluation, participants are randomly assigned to receive either propranolol or placebo (a look-alike pill with no active ingredient) for 8 weeks During this time they are seen by a doctor once a week for 4 weeks and then once every other week for the rest of the study. At the end of the 8-week treatment period, participants undergo the same evaluation they had before beginning treatment (see above). The decision to continue treatment will then be decided based on the individual's clinical condition and whether he or she received propranolol or placebo.
Major Depressive Disorder (MDD) Study in Elderly Outpatients
The purpose of this study is to determine whether the combination of cognitive-behavioral treatment and nortriptyline are more effective than each treatment alone in reducing the pain and disability associated with TMD.
The purpose of this study is to increase researchers understanding of the biological basis of generalized anxiety disorder and social anxiety disorder. They will investigate how the brain activity associated with specific thoughts and feelings may play a role in these anxiety disorders. This knowledge will be used to design interventions to help those with these illnesses. To qualify for this study, participants must be evaluated via an initial telephone screening interview and material sent through the mail. Participants will then be required to make three visits to NIH. During the first visit, they will be asked questions about their general mood, degree of nervousness, thinking skills, and behavior. They will undergo a thorough physical exam, including an EKG, blood work, urinalysis, and a pregnancy test for women of childbearing potential. During the second visit, participants will spend about 2.5 hours doing various tasks while sitting and looking at a computer screen. These tasks will guide them to experience specific kinds of thoughts and emotions. Researchers will attach electrodes to the participants hands to monitor the amount of electricity conducted by the skin. The third visit will be similar to the second visit, but participants will perform the tasks while lying in a MRI scanner. Participants will be compensated up to $400 for their involvement in this study.
The purpose of this study is to evaluate the impact of treating depression on substance dependent teens.
A Placebo Controlled Study Evaluating Efficacy, Safety and Tolerability of Medication in Patients with Major Depressive Disorder (MDD)
This is a randomized controlled trial examining the effectiveness of a pharmacy-based intervention designed to improve adherence with antipsychotic medications among patients with serious mental illness.
This study will use three neurophysiological tests (see below) to determine what areas of the brain are responsible for paroxysmal hyperkinetic movement disorders. Patients with these disorders have sudden, brief attacks of movement, similar to epileptic seizures, but without loss of consciousness. Normal volunteers and patients with two subtypes of paroxysmal hyperkinetic movement disorder, paroxysmal dyskinesia and psychogenic variant, that can be induced by a specific trigger, such as a sudden movement or prolonged exercise, will be included in this study. Candidates must be 12 years of age or older. Women of childbearing potential will be screened with a pregnancy test. Participants will undergo one or more of the procedures detailed below. Patients' test results will be compared with those of normal volunteers. Before each test, participants will provide a medical history and undergo a brief physical examination. During each procedure, the subject will have surface electromyography (EMG) to measure the electrical activity of muscles. For EMG, electrodes (metal discs) filled with a conductive gel are taped to the skin over the muscle to be evaluated. Functional Magnetic Resonance Imaging (fMRI) MRI uses a strong magnetic field, radio waves, and computer technology to provide detailed images of the brain. For this test, the subject lies in a narrow cylinder (the scanner), while pictures of the brain are taken. Earplugs are worn to muffle loud noises caused by electrical switching of radio frequency circuits used in the scanning process. For functional MRI (fMRI), the subject is asked to mimic a movement that occurs during an attack, such as stiffening the hand to make a fist or flexing and rotating the arm inward, to detect changes in the brain regions involved in the movement. During the procedure, involuntary movements and voluntary movements will be monitored by surface EMG and by video camera. The test will last about 1-1/2 hours. Electroencephalography (EEG) EEG measures the electrical activity of the brain (brain waves) with electrodes placed on the scalp. During the procedure, muscle activity will be recorded with EMG. The subject will first relax and then will be asked to mimic a movement attack. The test will last from 1-1/2 to 2 hours. Startle Reflex The subject will put on a headphone and hear loud noises in a random fashion. During the test, muscle activity will be recorded with EMG and with a video c...