<qa>  What is the recommended scale for intubated patients?Nociception in intensive care unit is frequently evaluated with some tools such as BPS Behavioral Pain scale and NCS Nociception coma scale. These scales were not validated in intubated and brain injured ICU patients. The investigators propose to validate the NCS adapted for intubated patients NCS-I in comparison with the recommended scale BPS and the Pupillary response videopupillometry to noxious stimulation common procedure of care. 