The purpose of this study is to determine if giving the medicine ?heparin? intravenously (through the veins) continuously for up to 14 days to subjects after a brain aneurysm has burst will help improve the chances of subjects having a good recovery after the bleed compared to subjects who get routine brain aneurysm care (standard of care). Patients who get routine care would also get heparin, but they would typically get an overall lower dose and the heparin would be injected under the skin (heparin shot) instead of in the veins.
Older adults typically have trouble identifying the speech they hear, especially in noisy environments. Fortunately, compared to younger adults, older adults are better able to compensate for difficulties identifying the speech they hear by recruiting the visual system. However, the extent to which older adults can benefit from visual input, and how this influence relates to age-related changes in brain structure and function, have not been thoroughly investigated. The general purpose of this study is to determine how age-related changes in brain structure and function affect how well people hear and see. This study seeks participants with normal hearing to mild hearing loss, who also have normal or corrected-to-normal vision.
In this study, we will use electrodes implanted inside the skull and over the scalp to study the effect of non-invasive brain stimulation method called transcranial direct current stimulation (tDCS). We will record changes in electric brain potentials and brain activity as a result of tDCS at both inside skull at scalp level. We will use this information to interpret how tDCS leads to changes inside the brain leading to changes the brain activity. This study will help us develop interventions that involve use of tDCS in a variety of disease conditions like stroke, depression, addiction, etc.
Cigarette smoking is a significant public health concern especially in cancer patients. rTMS has been investigated for smoking cessation in healthy smokers. This study will test the therapeutic benefits of rTMS for smoking cessation in cancer patients with smoking. Firstly, we will evaluate total number of smoke-free days during a 7-day quit attempt. Secondly, we will evaluate cigarette consumption and cue craving for smoking during the quit attempt period.
This study examines eye movements and the pupil's response to light in progressive supranuclear palsy (PSP), comparing to Parkinson's disease and control subjects without neurological disease. Computerized measures of eye movements and pupil changes will be used. Subjects will also receive an eye exam to rule out other eye diseases. The goal of this study is to use subtle changes in eye movements and the pupil's response to light for earlier diagnosis of PSP.
A seizure is a common sign or symptom characterized by abnormal electrical activity in the brain that affects about 10% of individuals in the population at some point in their lives. Although most are self-limited and transient, seizures sometimes fail to respond to medications and may even progress despite administration of medications. When these seizures are characterized by spread to both sides of the brain (become generalized), aggressive management with sedating medications is warranted. However, if seizures remain confined to one side of the brain (remain focal), the risks associated with high doses of sedating medications often outweighs the potential benefits of stopping the seizure. This has led to a search for other therapies that can more effectively target and control focal seizures without causing significant sedation, damage to other organs, or medication interactions. Transcranial magnetic stimulation (TMS) is one such therapy that has shown promise in case series and case reports, although no clinical controlled trial has yet been published to validate its efficacy in patients with severe seizures. In addition, TMS has been shown to be safe for use in epilepsy and other disorders.
We aim to evaluate the efficacy of TMS in patients with severe seizures that are not controlled with medications.
The purpose of this study is to examine the accuracy of wearable technology to detect and characterize smoking behavior. The study consists of one visit and will last approximately one hour. We are seeking adult (? 18 years old) male and female smokers to participate. Compensation is available for those that qualify.
Individuals with anxiety disorders are approximately twice as likely as the general population to experience alcohol addiction and vice versa. The affinity toward addiction is especially high in the case of posttraumatic stress disorder (PTSD). Animal and human work has suggested that the neurocircuitry largely overlaps in both the expression and extinction of fear and craving. This study involves utilizing one session of non-invasive brain stimulation (repetitive transcranial magnetic stimulation) to enhance extinction learning as measured with functional magnetic resonance imaging, in both healthy individuals and those with PTSD and alcohol addiction. While this is a single session study, the goal of this study is two identify promising new brain targets to be used therapeutically for individuals suffering from PTSD and alcohol addiction.
We are studying the potential influence of non-invasive brain stimulation on the areas of the brain that control muscle movements. This study involves questionnaires, measurements of muscle movements with non-invasive electromyography (EMG) and transcranial magnetic stimulation. While we are looking for healthy volunteers, these findings could help us develop treatments for people struggling with anxiety and depression.