Neural networks including the prefrontal and anterior
cingulate cortices develop under influence of genetic and environmental factors and play an important role in emotional reactivity but also in emotion regulation, attention, and cognitive control [11, 12].
Rao's team found that when volunteers saw names such as Britney Spears, George Clooney, Albert Einstein and Marilyn Monroe, those who were at the highest risk of
developing Alzheimer's — those with both the genetic makeup and a family history — showed high levels of activity in the hippocampus, posterior
cingulate and regions of the frontal
cortex, all areas involved in memory.