%0 Journal Article %T Neural Mechanisms of Age-Related Slowing: The ΔCBF/ΔCMRO2 Ratio Mediates Age-Differences in BOLD Signal and Human Performance %A Hutchison, Joanna L. %A Lu, Hanzhang %A Rypma, Bart %J Cerebral Cortex %V 23 %N 10 %P 2337-2346 %@ 1047-3211 %D 2013-10-01 %I Oxford University Press %~ DeepDyve