Fig. 2.

AHC of autoregulatory indices—grand mean data. AHC agglomerative hierarchal clustering, AMP fundamental amplitude of ICP, CPP cerebral perfusion pressure, Dx diastolic flow index (between FVd and CPP), Dx_a arterial diastolic flow index (between FVd and MAP), FVd diastolic flow velocity, FVm mean flow velocity, FVs systolic flow velocity, ICP intracranial pressure, Lx laser Doppler flow index (between LDF-CBF and CPP), Lx_a arterial laser Doppler flow index (between LDF-CBF and MAP), Mx mean flow index (between FVm and CPP), Mx_a arterial mean flow index (between FVm and MAP), PAx between AMP and MAP, PRx pressure reactivity index (between ICP and MAP), RAC between AMP and CPP