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. Author manuscript; available in PMC: 2022 Nov 14.
Published in final edited form as: Neurobiol Aging. 2022 Sep 22;121:1–14. doi: 10.1016/j.neurobiolaging.2022.09.006

Figure 3.

Figure 3

Main and age effects on task-based activity and cerebral blood flow (CBF) maps. (a) Main effects of BOLD activity in response to Hard vs Easy blocks with over- and underactivations shown in warm and cold colours, respectively. (b) Age-related decreases (cold colours) and increases (warm colours) in Cattell task. (c) Main effect of baseline CBF across all participants. Note the use of ‘relative CBF’, i.e. ‘unquantified CBF’ in our study. (d) Age-related decreases (cold colours) and increases (warm colours) in baseline CBF. Slices are numbered by z level in Montreal Neurological Institute (MNI) space.