Ultimatum game task
During the week-7 MRI scanning session, participants completed an Ultimatum Game taskYounger and older adults completed two slightly different versions of the task. In younger adults’ version of the task, half of the human proposers were proposers that players knew, while the other half were strangers. For familiar proposers, pictures of participants’ group mates were used. In older adults’ version of the task, all human proposers were strangers.