Why is there a temporary loss of consciousness in patients with a concussion / MTBI (mild traumatic brain injury)?

Question of the Week, 10.1.2011

A concussion is a mild traumatic brain injury without persisting loss of brain function. Although a huge range of functional and structural alterations in the brain after a MTBI has been described, the exact mechanism of the temporary loss of consciousness remains unclear. Understanding this mechanism might provide new insight in the brain’s potential to regenerate after traumatic damage.

Johannes Heymer