| Eye Opening | Best Verbal Response | Best Motor Response | |
| 0 | None | None | None |
| 1 | To Pain | Incomprehensible | Extending (decerebrate) |
| 2 | To Speech | Inappropriate | Flexing (decorticate) |
| 3 | Spontaneous | Confused/screaming | Flexing (withdrawal) |
| 4 | Open | Orientated/dysarthric | Localising pain |
| 5 | Conversant/clear speech | Obeys commands or spontaneous movement | |
| 6 | Ambulatory |
Jennett B. Some aspects of prognosis after severe head injury.Scand J Rehabil Med 1972;4(1):16-20
Teasdale G, Jennett B. Assessment and prognosis of coma after head injury. Acta Neurochir (Wien) 1976;34(1-4):45-55