Social economic decision-making across the lifespan: An fMRI investigation

► This study examined how healthy aging affects social economic decision-making. ► Relative to young adults, older adults rejected more moderately unfair offers. ► Older adults recruited the left dorsolateral prefrontal cortex to a larger extent. ► Such activation was related to their acceptance rates for the most unfair offers. ► Older adults also showed less activation of the anterior insula bilaterally.