Evolution of central venous blood oxygen saturation (A), carotid blood flow (B) and brain tissue oxygenation index (C) at baseline (t0’); and throughout the course of the experiment: end of controlled bleeding (Shock30’); beginning of infusion, 30 min after the end of controlled bleeding (Res0’); end of infusion (Res30’); follow up 30 min after the end of the infusion (Obs30’); follow up 60 min after the end of infusion (Obs60’); follow up 90 min after the end of infusion (Obs90’).