Researchers at NYU have created a handheld device that can detect damage done by a concussion:
BrainScope is made up of an adhesive strip that contains six electrodes that are connected to a small computer. When a head injury occurs in an individual, a medical first responder places the electrode strip on the injured patient's forehead. BrainScope then collects a sample EEG and computes a large number of QEEGs that are compared to a databank of normal scores. Almost immediately, the BrainScope's color display indicates whether any functions deviate from the norm.
Although the device is still in an experimental phase, this could have an overwhelming impact on sports–and hopefully a positive impact on prevention.