Table 1. Description of the items of the Motor Behavioural Tool.

	MOTOR BEHAVIOUR TOOL (MBT)	Yes	No
1	Observation of non-reflex movements (hypokinetic, spontaneous, or induced by a sensitive or a nociceptive stimulus)
2	Observation of isolated ocular movements (fixation with low reproducibility, pursuit with signs of perseveration)
3	Presence of intentional movements to command but with low reproducibility (due to signs of perseveration, to disorders of attention or to aphasia)
4	Observation of facial movement in response to noxious stimulation
5	Observation of increased motor behaviours in a motivational context (familiar voices, outdoor therapy, enjoyable stimulation)
6	Facial akinasia in the context of concomitant causal pathologies (cranial nerve palsy, cranial or peripheral neuromyopathies, and disorders of drive and motivation linked with strategic lesions based on neuroimaging or on electromyographic data)
7	In case of extubation or tracheostomy with speaking valve: absence of vocalization in the context of concomitant causal pathology (cranial nerve palsy, cranial or peripheral neuromyopathies, and disorders of drive and motivation, linked with strategic lesions based on neuroimaging or on electromyographic data)
8	Abnormal motor or neurovegetative reflex induced by stimulation
9	Signs of roving eyes or absence of oculocephalic reflex
10	Increased oral reflex