The researchers studied 12 middle-aged adults, 12 young adults, and 16 older adults. The brains of these people were being scanned by the fMRI while they performed recognition and encoding tasks. There were no remarkable age differences with regard to encoding tests, but there were differences in recognition accuracy between the different age groups. The middle-aged group displayed lesser recognition accuracy, even though the difference was not very great when compared to the younger group.
When all the tasks were taken into consideration, older brains displayed a higher level of activity in the parietal and the medial frontal regions. The research also suggested the strategies which older adults may need to adopt to remain focused on the activity on hand. This may involve not undertaking two tasks simultaneously. The level of education also plays a strong role where staying focused is concerned. The more highly educated were less susceptible to this than the less educated.