What can the brain do to repair itself after traumatic injury? What does the recovery of the brain typically depend on? How does therapy facilitate in the restoration of lost brain function?

View the Brain Injury video
(http://searchcenter.intelecomonline.net/playClipDirect.aspx?id=E22DB555B562B463C0F5EE35DE315BCBC678A2745E8112F307C928E741870CF43A060BE5329016E2433239BB916CA4A8).
What can the brain do to repair itself after traumatic injury?  What does the
recovery of the brain typically depend on?  How does therapy facilitate in the
restoration of lost brain function?  Are there any other approaches, besides
physical therapy that could assist in regaining the brain function lost from a
traumatic brain injury?  Your initial post should be a minimum of 250 words and
utilize at least one peer-reviewed source that was published within the last
five years.