Active clinical trials for "Brain Injuries, Traumatic"

mTBI is widely recognized as a major public health concern in the United States and worldwide. mTBI diagnosis remains a clinical challenge as no single test can diagnose every concussion. Recent advances in EEG evoked response potential analysis have led to a novel technique for assessing brain network activation (BNA) patterns. This study purpose is to study this BNA technology in individuals who have sustained a concussion.

The purpose of this study is to investigate the role of cognitive reserve in change in connectivity in the brain (measured with functional magnetic resonance imaging, fMRI) and how this is related to symptoms and symptom resolution.

The purpose of this study is to determine the sensitivity and specificity of an aid in assessment of concussion based on eye-tracking, in comparison to a clinical reference standard appropriate for the Emergency Department (ED) or concussion clinic.

This study (Part 1) is designed to build a database including EEG, neurocognitive performance, clinical symptoms, history and other relevant data, which will be used to derive a multimodal EEG based algorithm for the identification of concussion and tracking of recovery. In addition, neuroimaging will be conducted at time of injury and following Return to Play (RTP).

The goal of this project is to develop a test to assess frontal lobe function using a rapid, inexpensive, objective, and standardized method, without the need for expertise in cognitive test administration. Such methods would be particularly helpful in traumatic brain injury (TBI), where objective measures are needed, and would greatly expand the capacity to make such assessments in clinical practice and research.

This study examines the possible microstructural changes in the brain during recovery after mTBI using diffusion MRI.

The purpose of the study is to gather information about patients with mild traumatic brain injury in order to develop guidelines for evaluation and treatment.

The goal of this phase of the project is to identify the elements of the Theory of Planned Behavior (TPB) that should be targeted to provide the most influence on older adults' behavior (or other stakeholders) to purchase and wear protective headwear. The investigators also intend to determine the format of communication (social marketing/academic detailing) that is most influential for different key stakeholder groups. The TPB has been useful in understanding behavior change related to exercise and adaptive equipment use (such as grab bars, canes, hip protectors); in understanding how a person's attitudes, subjective/social norms and perceived behavioral control inform the development of intention that leads to behavior change.

Neuroglobin has been described as a marker of traumatic brain injury. Nogo-A plays an important role in mediating neuroanatomical plasticity and functional recovery following traumatic brain injury. The investigators sought to examine the changes in serum neuroglobin and Nogo-A concentrations in patients with traumatic brain injury during the initial 96-h posttraumatic period and assessed the relation of neuroglobin and Nogo-A to Glasgow Coma Score and prognosis of such patients with traumatic brain injury.

Background: - Chronic traumatic encephalopathy (CTE) is a brain disease caused in part by head injury. The brain changes from CTE can only be seen at autopsy. Researchers want to test a new brain scan to help diagnose CTE in living patients. Objective: - To determine if a new type of brain scan can detect changes that occur in chronic traumatic encephalopathy. Eligibility: - Adults age 18 60 with previous head injury or participation in certain sports. Design: Participants will be screened with: Physical exam Blood and urine tests Tests of thinking, mood, and memory 30-minute magnetic resonance imaging (MRI) brain scan. A magnetic field and radio waves take pictures of the brain. Participants will lie on a table that slides into a metal cylinder. They will get earplugs for the loud knocking sounds. Visit 1: Participants will have a 70-minute PET scan of the brain with a small amount of a radioactive chemical. That will be injected through an intravenous tube (catheter) in each arm. A catheter will also be put into an artery at the wrist or elbow. Participants will lie on a bed that slides in and out of a donut-shaped scanner. A plastic mask may be molded to their face and head. Vital signs and heart activity will be checked before and during the scan. Blood and urine will be taken before and after the scan. Participants will be checked on by phone the next day. Visit 2: Participants will repeat Visit 1 with a different chemical and no artery catheter. Visit 3: Participants may have a spinal tap. Some fluid will be removed by needle between the bones in the back.