Concussion is a trauma-induced change in mental status, with confusion and amnesia, and with or without a brief loss of consciousness. A concussion occurs when the head hits or is hit by an object, or when the brain is jarred against the skull, with...

Concussion is a change in mental status caused by trauma (shock). It is accompanied by confusion, loss of memory, and, sometimes, loss of consciousness. A concussion occurs when the head hits or is hit by an object. A concussion can also occur when...

(from Latin, concussus, derived from con: together, quatere: to shake) Concussion is a term indicating disturbance or shaking. It has various meanings depending on the context in which it is used, but in neurological terms it refers to a disturbance in...

Sudden shock to or jarring of the brain, which may or may not cause a loss of...

Soccer-related concussions can cause problems with brain function, a new study says, but an author said the investigation found no evidence that the technique known as "heading" is responsible. Co-author Dr. Barry D. Jordan said the lowered mental performance scores found in...

Case Presentation You are the sideline doc at the conference championship football game. You are called to the field to examine your QB who was sacked in the last play of the first half with his head hitting the firm fall turf....

An unusual study by doctors treating blast victims at a field hospital in Iraq has found that ruptured eardrums may help reveal which troops are at risk of hidden brain injury.The finding is important because many such brain injuries have been missed in the past,...