Fig. 2.

Age differences in PFC involvement while processing positive stimuli. Although some studies showed greater PFC activity to positive stimuli than to neutral stimuli in younger adults than in older adults (shown by white dots; online version: blue dots), in studies with tasks requiring deep processing of stimuli, older adults recruited PFC more for positive stimuli than for negative stimuli (relative to younger adults), which is shown by black dots (online version: red dots). See table 2 for a list of coordinates and studies used in the figure.