The HS-1000 is an innovative non-invasive monitoring device that employs advanced acoustic signal analysis to calculate ICP on a continuous basis. Initial HS-1000 clinical data also shows promise in assessing a variety of cerebral hemodynamic parameters such as cerebral blood-flow, auto regulation monitoring, and cerebrovascular vessels compliance. In the absence of a non-invasive monitor of intracranial pressure (ICP), the relationships, if any, that may exist between concussion, timing of the concussion (e.g. acute, resolving, resolved) and ICP is unknown. The new HS-1000 non-invasive device may provide insight into assessment of possible ICP changes following concussion in children.