[Mental disorders after mild traumatic brain injury].

Mild traumatic brain injury (mTBI) is a frequent neurological disorder following a closed head injury. It is often accompanied by temporary changes of consciousness as well as cognitive, emotional and physical symptoms. These symptoms subside in the vast majority of affected persons within a few weeks; however, in recent years it has become increasingly more apparent that functionally significant long-term effects can remain after an initially diagnosed mTBI. In these cases mental disorders, such as impairment of cognitive and emotional functions as well as somatic disorders play an important role. This article presents the frequency, diagnosis, therapy and possible mechanisms of cognitive and emotional dysfunction after mTBI, including medicolegal aspects.