highly significantP < 0.01
Highly significant correlations were found between r 50′(SC) and V t for the three brain regions analysed (hippocampus: Pearson r = 0.87, P < 0.01; thalamus: Pearson r = 0.96, P < 0.001 and amygdala: Pearson r = 0.84, P < 0.01) after exclusion of the [ 18 F]-PBR111-negative animal (Figure 7 ).