The Dynavision D2 is a cutting edge, high performance training and evaluation instrument that records responses to visual, motor, and neurocognitive tests. Users of the Dynavision D2 work to improve visual reaction time, peripheral awareness, eye-hand coordination, and decision making under stress. In addition, the D2 can measure baseline cognitive levels to be used in the event of a possible concussion. This technology has been developed over 20 years and has been utilized by professional, Olympic, college, and high school athletes. Not only can the D2 help improve performance, this training instrument also provides a safety net to make sure athletes get back to their sport when they are cognitively and physically ready.