Recovery of consciousness after acute brain injury is a remarkable phe
nomenon, yet, not completely understood. We describe the early clinica
l stages of recovery of consciousness in 48 selected patients by means
of different items of the Glasgow Coma and Liege Coma Scales. Arousal
, expressed by the stimulated opening of the eyes (E2) was correlated
with the appearance of the localizing pain response (M5), with the cap
acity to obey commands (M6), with the opening of the eyes (E4) and wit
h the blink reflex (R5). This study confirms the classical clinical se
quence of arousal and recovery of consciousness characterized by the c
onsecutive appearance of E2, R5, E4, M5 and M6. When the appearance of
E2 and R5 are considered separately, we noticed a significant differe
nce, suggesting different structural and functional brain recovery pro
cesses.