Fig. 2.

Typical behavioural, PCI, and FDG–PET results in an UWS, MCS*, MCS and LIS patients.

Top row illustrates the behavioural subscores of each assessment with the black line representing the threshold for MCS. The second row illustrates the areas on the left hemisphere in which FDG–PET finds significantly impaired (blue) or preserved (red) metabolism compared to 39 controls (p < 0.05). The third raw illustrates the TMS evoked potential traces at the cortical level, which are later used to compute PCI. Note that while behaviourally, UWS and MCS* are alike, the MCS*'s TMS evoked potentials and FDG–PET patterns are more similar to those observed in MCS and LIS patients. FDG–PET images were created by merging the impaired and preserved metabolism maps from SPM8. UWS: unresponsive wakefulness syndrome, MCS*: non-behavioural minimally conscious state, MCS: minimally conscious state, Aud. Vis. Mot. Oro. Com. Aro. are the six CRS-R subscales, A: anterior, P: posterior.