Concussion is a common brain injury. The American Academy of Neurology provides a definition of concussion: “Concussion is a traumatically, or biomechanically, induced alteration of brain function. Emphasis is placed on a pathophysiological process, or functional disruption, as opposed to anatomic, structural, or tissue injury.”. The incidence of mild traumatic brain injury (mTBI) is estimated at 200 per 100 000. The Centers for Disease Control and Prevention (CDC) estimates 3.8 million sport and recreational mTBIs occurring in the United States each year. A more recent CDC assessment estimates 2.5 million concussion injuries in high school sports alone. The controlled environment and opportunity for direct surveillance and observation has made the sports arena the scientific “wet lab” for the study of mTBI natural history, short- and long-term consequences and opportunities to intervene. Quantitative EEG methods have been utilized in the assessment and management of mTBI and lends to provide a cost-effective procedure that has the sensitivities needed to identify pathology where routine visual inspection of the EEG has failed.

脑震荡是常见的脑损伤。美国神经病学会提供了脑震荡的定义：“脑震荡是由创伤或生物力学引起的脑功能改变。重点放在病理生理过程或功能破坏上，而不是解剖，结构或组织损伤。” 轻度颅脑损伤（mTBI）的发生率估计为每10万人中200例。疾病控制与预防中心（CDC）估计，美国每年发生380万运动和娱乐性mTBI。美国疾病预防控制中心（CDC）的最新评估估计，仅在高中运动中就有250万例脑震荡。受控的环境和直接监视和观察的机会已使运动场成为研究mTBI自然历史的科学“湿实验室”，短期和长期后果以及干预的机会。定量脑电图方法已用于mTBI的评估和管理中，有助于提供一种具有成本效益的程序，该程序具有识别常规脑电图检查失败的病理所需要的敏感性。