It has been hypothesized that concussions impart lasting brain damage, even after a patient has ostensibly recovered. This hypothesis is based largely upon neuropathological studies in deceased athletes, however, leaving open the question of whether it can be detected in vivo. We measured neural responses to speech in collegiate student-athletes with a history of a single concussion from which ...

To address the relationships of clinical symptoms and pathology and the location and magnitude of brain strains, the Wayne State University human head finite element model was used with loading conditions posited to produce severe concussion (AIS 3) and mild, moderate and severe diffuse axonal injury (DAI) (AIS 4 ‐ AIS 5). Sinusoidal accelerations with peak thresholds of 8,100, 11,000, 14,00...

Veterans with chronic posttraumatic stress disorder were evaluated for a history of blast concussion, controlling for confounding conditions. Electroencephalograms were analyzed by discriminant function for traumatic brain injury. A difference was found in discriminant scores between veterans with and without blast concussion. More members of the blast group had attentional symptoms and attenti...

Children and adolescent athletes are at a higher risk for concussion than adults, and also experience longer recovery times and increased associated symptoms. It has also recently been demonstrated that multiple, seemingly mild concussions may result in exacerbated and prolonged neurological deficits. Objective assessments and return-to-play criteria are needed to reduce risk and morbidity asso...

Abstract Objective Research has demonstrated reaction time variability (RTV) as a potentially sensitive metric for post-concussion assessments. The Brain Gauge Clinical Metrics battery (BG) device uses tactile sensory stimulation to elicit response, increasing accuracy <1 msec versus 30–100 in visually-based (RT) measures. We sought determine if BG RTV could adequately identify individua...

We review the current topic in sports-related head injuries including acute subdural hematoma (ASDH), concussion, and chronic traumatic encephalopathy (CTE). Sports-related ASDH is a leading cause of death and severe morbidity in popular contact sports like American football in the USA and judo in Japan. It is thought that rotational acceleration is most likely to produce not only cerebral conc...

This article reviews the essential components of a practical, evidenced-based approach to the management of sport-related concussion in an ambulatory care setting. The model presented is based on the core philosophy that concussion assessment and management be approached from the biopsychosocial perspective, which recognizes the medical/physiological, psychological, and sociological factors tha...

CONTEXT Increasing attention is being paid to the deleterious effects of sport-related concussion on cognitive and brain health. OBJECTIVE To evaluate the influence of concussion incurred during early life on the cognitive control and neuroelectric function of young adults. DESIGN Cross-sectional study. SETTING Research laboratory. PATIENTS OR OTHER PARTICIPANTS Forty young adults were ...

Sports-related concussions are common among pediatric and adolescent athletes, yet a scarcity of age-specific research often has meant that practitioners use guidelines developed for collegiate or adult populations. This situation is changing, as more studies are being published about this population that bears special attention because of the immaturity of the developing brain. This article de...

The pathophysiology of concussion may lead to a variety of both short- and long-term effects, which may lead to a decision to retire from contact sports. These effects follow a recognizable progression and may cause an athlete to opt out of play at any point along this progression. To elucidate the effect of concussion or mild traumatic brain injury and weigh in on a decision to retire, the tre...