The brain is sensitive to the quality of care received during childhood.
Scientists have established that the amygdala is involved in assigning emotional significance to information and events, and it contributes to the way we behave in response to potential risks. The need to learn about the safety or danger of new experiences may be greater in early life, when we know little about the world around us.
“Having enlarged amygdala could be protective and increase the probability of survival,” Lupien said.
The study was recently published in the Proceedings of the National Academy of Sciences.